1 00:00:08,560 --> 00:00:11,879 Speaker 1: Hey, Daniel, if you could travel to another solar system, 2 00:00:11,920 --> 00:00:13,840 Speaker 1: would you sign up to do it? Oh? I would 3 00:00:13,960 --> 00:00:17,320 Speaker 1: so love to be in another solar system, but I'm 4 00:00:17,320 --> 00:00:20,400 Speaker 1: not sure I'm up for actually taking the trip. Or really, 5 00:00:20,400 --> 00:00:23,440 Speaker 1: do you get spasic easily? Yeah, especially after forty years 6 00:00:23,440 --> 00:00:25,439 Speaker 1: of eating the same food. Well, why don't you just 7 00:00:25,520 --> 00:00:27,880 Speaker 1: take the Red Eye? You know, like you go into 8 00:00:28,040 --> 00:00:29,880 Speaker 1: hibernation and then you wake up when you get there. 9 00:00:29,920 --> 00:00:32,920 Speaker 1: That's kind of like teleporting almost. I do like naps, 10 00:00:32,960 --> 00:00:35,160 Speaker 1: but I'm not sure I'm up for a forty year nap. 11 00:00:35,400 --> 00:00:37,120 Speaker 1: I have to pay for economy plus in or to 12 00:00:37,159 --> 00:00:38,920 Speaker 1: have enough room to really sleep. Come from me to 13 00:00:39,000 --> 00:00:41,920 Speaker 1: sleep well for forty years. Well, if you could visit 14 00:00:41,960 --> 00:00:45,720 Speaker 1: another solar system without actually traveling there, how about that? 15 00:00:45,760 --> 00:00:47,520 Speaker 1: Would you be up for them totally? If I could 16 00:00:47,520 --> 00:00:49,519 Speaker 1: just sit on my couch and then like open the 17 00:00:49,560 --> 00:00:52,440 Speaker 1: door to see another world, I'd be in Oh. Man, 18 00:00:52,560 --> 00:00:55,480 Speaker 1: Then I've got an idea for you. I just need 19 00:00:55,520 --> 00:00:58,040 Speaker 1: four trillion dollars. If you have that in your pocket, 20 00:00:58,720 --> 00:01:17,080 Speaker 1: let's crowdsource it from our list. O Nurse. Hi, I'm 21 00:01:17,160 --> 00:01:20,160 Speaker 1: or I'm a cartoonist and the creator of PhD Comics. Hi, 22 00:01:20,319 --> 00:01:23,759 Speaker 1: I'm Daniel. I'm a particle physicist, and I dream about 23 00:01:23,840 --> 00:01:27,120 Speaker 1: traveling the universe from my couch. Welcome to our podcast 24 00:01:27,160 --> 00:01:29,880 Speaker 1: Daniel and Jorge Explained the Universe, a production of I 25 00:01:30,040 --> 00:01:33,080 Speaker 1: Heart Radio, in which we take mental trips all over 26 00:01:33,120 --> 00:01:36,120 Speaker 1: the universe, from the heart of neutron stars to what's 27 00:01:36,120 --> 00:01:39,399 Speaker 1: happening inside a black hole, to crazy stuff at the 28 00:01:39,440 --> 00:01:42,240 Speaker 1: microscopic level, and try to explain all of it to 29 00:01:42,319 --> 00:01:45,240 Speaker 1: you in a way that also maybe makes you laugh. Yeah. 30 00:01:45,280 --> 00:01:48,240 Speaker 1: I think of us as your audio guide to in 31 00:01:48,320 --> 00:01:51,440 Speaker 1: your tour of the universe as you travel from the 32 00:01:51,440 --> 00:01:55,200 Speaker 1: farthest reaches to the smallest places in the universe. That's right, 33 00:01:55,320 --> 00:01:57,920 Speaker 1: And we might not just be limited to a mental trip. 34 00:01:57,960 --> 00:02:01,279 Speaker 1: It might be possible to actually take a trip somewhere 35 00:02:01,320 --> 00:02:04,760 Speaker 1: else in the galaxy. Maybe someday, sometime in the future, 36 00:02:05,040 --> 00:02:09,200 Speaker 1: humans will actually set foot on planets in other solar systems. Yeah, 37 00:02:09,200 --> 00:02:11,800 Speaker 1: it's been a dream of humanity for a long time. 38 00:02:11,840 --> 00:02:14,080 Speaker 1: I think, right, it hasn't it been to travel to 39 00:02:14,080 --> 00:02:17,880 Speaker 1: another star and discover new world and maybe discover different 40 00:02:17,880 --> 00:02:20,880 Speaker 1: civilizations out there in space. But it's always been kind 41 00:02:20,880 --> 00:02:23,200 Speaker 1: of a difficult thing to get out into space and 42 00:02:23,240 --> 00:02:28,200 Speaker 1: to travel somewhere because the distances are so big and 43 00:02:28,440 --> 00:02:31,359 Speaker 1: it's a pretty hostile environment out there in space. Yeah. 44 00:02:31,400 --> 00:02:33,680 Speaker 1: Do you think it's a dream of humanity as a 45 00:02:33,760 --> 00:02:37,560 Speaker 1: species or like of all humans, because I would love 46 00:02:37,600 --> 00:02:41,080 Speaker 1: for difference between NY and all humans. Well, I would 47 00:02:41,080 --> 00:02:44,000 Speaker 1: love for humanity to explore the galaxy and learn all 48 00:02:44,040 --> 00:02:46,400 Speaker 1: these things and send us pictures back. But I don't 49 00:02:46,400 --> 00:02:50,160 Speaker 1: particularly want to be in a spaceship or be an astronaut, 50 00:02:50,200 --> 00:02:53,600 Speaker 1: though I'm like a big proponent of the humanity doing 51 00:02:53,639 --> 00:02:57,400 Speaker 1: it one small step for some other man. Oh, I see, 52 00:02:57,440 --> 00:02:59,280 Speaker 1: you just want to sit back, But you don't want 53 00:02:59,320 --> 00:03:01,760 Speaker 1: to be the one who had discovers another world or 54 00:03:01,840 --> 00:03:04,200 Speaker 1: to be the one who's who travels to another world. 55 00:03:04,200 --> 00:03:06,240 Speaker 1: So even if we discovered another world, you wouldn't want 56 00:03:06,240 --> 00:03:08,200 Speaker 1: to go there unless I could do it from my couch. 57 00:03:08,240 --> 00:03:09,640 Speaker 1: You know, I'm not up on I don't even like 58 00:03:09,720 --> 00:03:11,760 Speaker 1: going skiing, you know, So I'm not that up on 59 00:03:11,840 --> 00:03:16,360 Speaker 1: like physical danger. I see, But you just want to 60 00:03:16,400 --> 00:03:19,280 Speaker 1: know that somebody else went there. Yes, totally. I will 61 00:03:19,320 --> 00:03:23,120 Speaker 1: pay more taxes and encourage people to work on these projects, 62 00:03:23,200 --> 00:03:26,639 Speaker 1: and I want us as humans to do it. But 63 00:03:26,800 --> 00:03:28,760 Speaker 1: I don't necessarily want to be that one. I wonder 64 00:03:28,960 --> 00:03:31,280 Speaker 1: how common that a feeling is, though. I wonder if 65 00:03:31,280 --> 00:03:34,960 Speaker 1: everybody else out there who's pro space travel also actually 66 00:03:35,000 --> 00:03:37,280 Speaker 1: wants to do it themselves. Yeah, I can see what 67 00:03:37,320 --> 00:03:39,400 Speaker 1: you mean. I mean not maybe not everyone can get 68 00:03:39,440 --> 00:03:44,400 Speaker 1: over the fear of possibly dying while you're exploring, but 69 00:03:44,800 --> 00:03:47,600 Speaker 1: everyone probably thinks it would be cooled for someone else 70 00:03:47,680 --> 00:03:50,120 Speaker 1: to discover a new place. Yeah. And I think for 71 00:03:50,160 --> 00:03:52,440 Speaker 1: some people that fear of death is living. You know. 72 00:03:52,520 --> 00:03:55,120 Speaker 1: Some people really want that thrill of living on the 73 00:03:55,240 --> 00:03:58,000 Speaker 1: edge and doing something dangerous and uh, I want to 74 00:03:58,000 --> 00:04:00,240 Speaker 1: hear all about it when they get back to live 75 00:04:00,280 --> 00:04:04,400 Speaker 1: in the centers, comfortably, in the center of things. I do. 76 00:04:04,480 --> 00:04:06,440 Speaker 1: I like my couch. Well, it is sort of an 77 00:04:06,440 --> 00:04:09,760 Speaker 1: impediment for you know, A big challenge for humans to 78 00:04:09,800 --> 00:04:12,840 Speaker 1: travel into space is a space is sort of big, 79 00:04:13,120 --> 00:04:15,400 Speaker 1: and there's really nothing out there, and you can die 80 00:04:15,400 --> 00:04:18,280 Speaker 1: at any moment because it's such a hostile there's no oxygen, 81 00:04:18,480 --> 00:04:20,680 Speaker 1: you know, the vacuum would kill you, the temperature would 82 00:04:20,760 --> 00:04:23,839 Speaker 1: kill you. It's a it's a pretty big barrier to 83 00:04:24,080 --> 00:04:27,120 Speaker 1: overcome if we want to discover other things out there. Yeah, 84 00:04:27,160 --> 00:04:29,919 Speaker 1: and one classic solution is, you know, try to take 85 00:04:29,960 --> 00:04:32,400 Speaker 1: what you need with you, make a little box and 86 00:04:32,400 --> 00:04:34,800 Speaker 1: fill it with air and food and all that stuff, 87 00:04:34,800 --> 00:04:38,600 Speaker 1: and sort of take the minimum human survival necessities and 88 00:04:38,640 --> 00:04:40,320 Speaker 1: pack them with you. But you know, that's sort of 89 00:04:40,360 --> 00:04:43,680 Speaker 1: like camping. You know, it's fun for a while, but 90 00:04:43,839 --> 00:04:46,200 Speaker 1: it can be a little uncomfortable, and you know you 91 00:04:46,200 --> 00:04:48,200 Speaker 1: don't want to do it for forty years or forty 92 00:04:48,240 --> 00:04:51,920 Speaker 1: thousand years. And so people are wondering, like, is it 93 00:04:52,000 --> 00:04:56,040 Speaker 1: possible to maybe explore the universe without ever leaving your home? 94 00:04:56,320 --> 00:04:59,240 Speaker 1: You mean teleporting and we teleport your couch, you and 95 00:04:59,240 --> 00:05:03,159 Speaker 1: your couch. Can we a couch that teleports Daniel somewhere else? 96 00:05:03,880 --> 00:05:05,760 Speaker 1: You know, that's a good question on Star Trek. How 97 00:05:05,760 --> 00:05:07,680 Speaker 1: come they have to stand up when they're in the teleporter? 98 00:05:07,839 --> 00:05:11,479 Speaker 1: Why can't they just be a chair there? We can't 99 00:05:11,520 --> 00:05:14,600 Speaker 1: even get to do stand up to teleport. You're like, 100 00:05:15,440 --> 00:05:18,320 Speaker 1: I've just stand up. Forget about it, Get about it, 101 00:05:18,320 --> 00:05:20,480 Speaker 1: I forget about it. I'm turning into an old man. 102 00:05:20,600 --> 00:05:22,680 Speaker 1: Every time I go somewhere, I'm always looking for a chair. 103 00:05:22,760 --> 00:05:25,760 Speaker 1: You know, where can I sit down? Are you laying 104 00:05:25,800 --> 00:05:29,000 Speaker 1: down as you were recording this Daniel on Advisive Counsel. 105 00:05:29,040 --> 00:05:34,159 Speaker 1: I refused to answer that question. Well, this is a 106 00:05:34,200 --> 00:05:38,800 Speaker 1: pretty big topic and a pretty big question, and and 107 00:05:38,880 --> 00:05:42,480 Speaker 1: so one of our listeners had maybe a good idea 108 00:05:43,360 --> 00:05:45,440 Speaker 1: or came upon a good idea for maybe how we 109 00:05:45,440 --> 00:05:49,520 Speaker 1: could travel comfortably to other solar systems. Yeah, I got 110 00:05:49,520 --> 00:05:52,840 Speaker 1: a wonderfully hilarious email from one of our listeners who 111 00:05:52,880 --> 00:05:56,159 Speaker 1: heard our podcast about terraforming and found that it came 112 00:05:56,200 --> 00:05:59,480 Speaker 1: in handy in a random conversation he had. So here's 113 00:05:59,480 --> 00:06:02,920 Speaker 1: what Daniels Saunders from London wrote to us. He says, Hi, 114 00:06:03,040 --> 00:06:05,440 Speaker 1: I just want to say thanks for the terraforming episode. 115 00:06:05,520 --> 00:06:08,159 Speaker 1: It came in surprisingly handy. When I was loading my 116 00:06:08,240 --> 00:06:12,240 Speaker 1: groceries onto the checkout at the supermarket to checkout assistance, 117 00:06:12,240 --> 00:06:14,920 Speaker 1: we're talking across to each other about whether or not 118 00:06:15,000 --> 00:06:18,440 Speaker 1: we could ever move to another planet, maybe Mars. They 119 00:06:18,440 --> 00:06:21,320 Speaker 1: didn't seem to have much idea on the subject. So 120 00:06:21,520 --> 00:06:23,880 Speaker 1: after a minute or two, I couldn't help myself and 121 00:06:23,920 --> 00:06:27,120 Speaker 1: I began explaining all the things I learned from your podcast, 122 00:06:27,480 --> 00:06:30,919 Speaker 1: making a magnetic feel, the giant mirror for heating, dumping microbes, 123 00:06:30,960 --> 00:06:33,880 Speaker 1: et cetera. They were pretty amazed that some random guy 124 00:06:33,960 --> 00:06:36,719 Speaker 1: happened to know these things. I gave credit where credit 125 00:06:36,760 --> 00:06:39,440 Speaker 1: is due and pointed them to your podcast. But then 126 00:06:39,560 --> 00:06:41,560 Speaker 1: they asked me if it would ever be possible to 127 00:06:41,680 --> 00:06:45,400 Speaker 1: physically move our planet or our solar system somewhere else 128 00:06:45,440 --> 00:06:48,720 Speaker 1: in space. So I'm writing to you to ask, Wow, 129 00:06:48,720 --> 00:06:51,240 Speaker 1: what an awesome email? And what is where is this 130 00:06:51,440 --> 00:06:57,000 Speaker 1: supermarket where people talk about science at the checkoutline? Nowhere here. 131 00:06:57,440 --> 00:07:01,359 Speaker 1: I've never overheard somebody asking such a complicated physics question 132 00:07:01,400 --> 00:07:05,320 Speaker 1: in public where I feel like, that's what I got 133 00:07:05,400 --> 00:07:07,440 Speaker 1: a PhD in physics for. So somebody would be like, 134 00:07:07,680 --> 00:07:09,720 Speaker 1: what is the branching ratio of the top cork from 135 00:07:09,720 --> 00:07:13,000 Speaker 1: the bottom cork? I wonder if anybody knows. At the 136 00:07:13,040 --> 00:07:15,360 Speaker 1: checkout line, you're like, oh my god, this is the 137 00:07:15,400 --> 00:07:18,000 Speaker 1: moment I've been preparing for for thirty years. Or you're 138 00:07:18,000 --> 00:07:20,200 Speaker 1: on airplane they're like, excuse me, is someone have a 139 00:07:20,240 --> 00:07:22,240 Speaker 1: PhD in particle physics on the plane. We have an 140 00:07:22,240 --> 00:07:25,920 Speaker 1: emergency calculation we need to do. Never happened to me. 141 00:07:26,320 --> 00:07:29,120 Speaker 1: We have an emergency particle collision. We need to analyze. 142 00:07:30,960 --> 00:07:32,480 Speaker 1: What are these courts? We don't know what to do 143 00:07:32,480 --> 00:07:35,800 Speaker 1: with them. But he does raise a fascinating question. So 144 00:07:35,800 --> 00:07:39,160 Speaker 1: I'm really glad that Daniel in London had this interaction 145 00:07:39,480 --> 00:07:43,200 Speaker 1: and generated this wonderful, fascinating question. Yeah, it's awesome to 146 00:07:43,200 --> 00:07:46,120 Speaker 1: think that our listeners are having these conversations with other people, 147 00:07:46,760 --> 00:07:49,480 Speaker 1: and even more awesome that they're telling them about our podcast. 148 00:07:49,960 --> 00:07:52,520 Speaker 1: That's right. So if you are one of those checkout 149 00:07:52,520 --> 00:07:55,320 Speaker 1: assistants from that supermarket, welcome to the podcast and thank 150 00:07:55,360 --> 00:07:57,840 Speaker 1: you for listening. This one is for you. But it's 151 00:07:57,840 --> 00:08:01,120 Speaker 1: an interesting idea. And so the idea is that Daniel 152 00:08:01,160 --> 00:08:03,360 Speaker 1: wrote in about is that you know, it is sort 153 00:08:03,360 --> 00:08:06,200 Speaker 1: of hard to pack everything with you to go on 154 00:08:06,240 --> 00:08:09,200 Speaker 1: a trip into outer space to another solar system, because 155 00:08:09,240 --> 00:08:11,880 Speaker 1: you know, you're you have to build your house your spaceship, 156 00:08:11,880 --> 00:08:13,640 Speaker 1: and you have to bring in a food and air 157 00:08:13,840 --> 00:08:17,200 Speaker 1: and be able to recycle everything. And so I guess 158 00:08:17,000 --> 00:08:20,560 Speaker 1: the idea here is that instead of building a spaceship, 159 00:08:20,800 --> 00:08:23,760 Speaker 1: think of it as us already being in a spaceship 160 00:08:23,840 --> 00:08:27,120 Speaker 1: called Earth. That's right, Yeah, just make Earth our spaceship, 161 00:08:27,200 --> 00:08:30,560 Speaker 1: like Earth is now a mobile home or a camper van, right, 162 00:08:30,840 --> 00:08:33,360 Speaker 1: take your house with you as you travel, or not 163 00:08:33,440 --> 00:08:36,240 Speaker 1: even just the Earth, the entire solar system could be 164 00:08:36,320 --> 00:08:39,920 Speaker 1: our you know, our camper. Yeah, well, I think you 165 00:08:40,000 --> 00:08:41,800 Speaker 1: need to bring the sun. Otherwise you'd end up in 166 00:08:41,840 --> 00:08:43,800 Speaker 1: the Rogue Planets episode that we just did, and that 167 00:08:43,800 --> 00:08:49,040 Speaker 1: would be pretty cold. That's a whole different episode. We 168 00:08:49,080 --> 00:08:51,240 Speaker 1: actually in a Netflix that I know you've seen it, 169 00:08:51,320 --> 00:08:55,160 Speaker 1: where they something like I think either a meter meteor 170 00:08:55,280 --> 00:08:58,160 Speaker 1: is coming or the Earth gets knocked out of orbit 171 00:08:58,240 --> 00:09:01,040 Speaker 1: until they build these giant engine to push the Earth 172 00:09:01,120 --> 00:09:04,280 Speaker 1: to anoder another solar system. Wow, and would you rate 173 00:09:04,320 --> 00:09:06,920 Speaker 1: the physics in it as excellent? I would rate these 174 00:09:06,960 --> 00:09:12,120 Speaker 1: special effects? Is not bad? Not bad? By not answering 175 00:09:12,120 --> 00:09:14,720 Speaker 1: the question, you've answered the question, and so the question 176 00:09:14,760 --> 00:09:23,160 Speaker 1: will be tackling today. Is is it possible to move 177 00:09:23,160 --> 00:09:26,040 Speaker 1: our solar system somewhere else? I think that sounds like 178 00:09:26,080 --> 00:09:28,680 Speaker 1: a wonderful way to explore the galaxy. I stay on 179 00:09:28,679 --> 00:09:30,839 Speaker 1: my couch and you just let me know when we're 180 00:09:30,840 --> 00:09:33,800 Speaker 1: getting near another solar system. You know, but then what 181 00:09:33,920 --> 00:09:35,800 Speaker 1: would you do? You wouldn't even want to visit the 182 00:09:35,800 --> 00:09:38,120 Speaker 1: neighbors because you would be like have to stand up. 183 00:09:38,320 --> 00:09:40,599 Speaker 1: What Well, you could just train the telescopes, you know, 184 00:09:40,640 --> 00:09:44,360 Speaker 1: we could like turn hubble on those near now nearby planets. 185 00:09:46,200 --> 00:09:48,520 Speaker 1: I see, you just want to look at pictures while 186 00:09:48,559 --> 00:09:51,439 Speaker 1: sitting on your couch. And if we get if we 187 00:09:51,520 --> 00:09:53,720 Speaker 1: get close enough to some alien solar system and there 188 00:09:53,720 --> 00:09:55,480 Speaker 1: are aliens, I'm sure they'll come meet us and we 189 00:09:55,520 --> 00:10:00,120 Speaker 1: can send our you know, strapping young representatives, young men 190 00:10:00,200 --> 00:10:03,240 Speaker 1: and men of our species to go and meet them. 191 00:10:03,240 --> 00:10:05,520 Speaker 1: It doesn't need to be some forty five year old, 192 00:10:05,679 --> 00:10:10,000 Speaker 1: grumpy business podcaster. Right, I'm not the prime candidate to 193 00:10:10,040 --> 00:10:16,480 Speaker 1: meet aliens. What if everyone refuses? Everybody refuses, It's like 194 00:10:16,720 --> 00:10:19,160 Speaker 1: he's staying in his couch. Why should I get up? 195 00:10:19,160 --> 00:10:21,640 Speaker 1: But it risk my life. We're all five years old, now, 196 00:10:21,760 --> 00:10:24,199 Speaker 1: all right? If nobody else will do it, I will 197 00:10:24,200 --> 00:10:27,920 Speaker 1: sign up. I will go. Really, yes, I'll take one 198 00:10:27,960 --> 00:10:31,800 Speaker 1: for the team. Absolutely. Let's let's let's write up the petition. 199 00:10:33,120 --> 00:10:35,680 Speaker 1: Who wants to go into space? No? One, Daniel Europe. 200 00:10:35,840 --> 00:10:38,199 Speaker 1: I'm pretty sure this is not a situation I'm ever 201 00:10:38,240 --> 00:10:42,320 Speaker 1: going to actually encounter. So I'm comfortable volunteering in that scenario. 202 00:10:42,600 --> 00:10:45,760 Speaker 1: You're comfortable in the craziness of other human beings to 203 00:10:45,840 --> 00:10:48,439 Speaker 1: do more recklessly. Yeah, people want to do that stuff. 204 00:10:48,480 --> 00:10:51,280 Speaker 1: There's always like thousands and thousands of people applying to 205 00:10:51,320 --> 00:10:53,439 Speaker 1: be astronauts, so there's no need for me to try 206 00:10:53,440 --> 00:10:55,360 Speaker 1: to elbow my way in there. Well, it's sort of 207 00:10:55,400 --> 00:10:58,040 Speaker 1: I'm surprised that this idea is out there, you know 208 00:10:58,200 --> 00:11:00,840 Speaker 1: that that um people have and thinking about this, and 209 00:11:00,880 --> 00:11:02,880 Speaker 1: it sounds like you did some research and you found 210 00:11:02,880 --> 00:11:05,400 Speaker 1: some stuff in it. Yeah, they're definitely people have been 211 00:11:05,400 --> 00:11:08,920 Speaker 1: developing concepts or how this could be possible, and it's 212 00:11:08,960 --> 00:11:11,480 Speaker 1: kind of important. There are reasons why we might want 213 00:11:11,520 --> 00:11:14,400 Speaker 1: to move our son, not just out of curiosity, not 214 00:11:14,520 --> 00:11:17,760 Speaker 1: just out of the desire to explore the universe and 215 00:11:17,880 --> 00:11:20,000 Speaker 1: be lazy on our couch, but also, you know, for 216 00:11:20,080 --> 00:11:22,920 Speaker 1: the survival of our solar system, there could be times 217 00:11:22,960 --> 00:11:25,000 Speaker 1: we need to move it. So I thought it was 218 00:11:25,040 --> 00:11:27,480 Speaker 1: a fascinating question. But as usual, we were wondering how 219 00:11:27,480 --> 00:11:30,000 Speaker 1: many people out there had even heard of this idea 220 00:11:30,240 --> 00:11:33,120 Speaker 1: much let's think that it's possible, And so as usual, 221 00:11:33,200 --> 00:11:35,000 Speaker 1: Daniel went out there and asked people in the street 222 00:11:35,400 --> 00:11:38,200 Speaker 1: if they thought it's possible to build a machine that 223 00:11:38,320 --> 00:11:42,960 Speaker 1: could move a star. So here's what people had to say, Yes, 224 00:11:43,000 --> 00:11:46,160 Speaker 1: but maybe in the far future, not what the materials 225 00:11:46,200 --> 00:11:49,480 Speaker 1: we have right now. How would you do it. Maybe 226 00:11:49,640 --> 00:11:55,199 Speaker 1: some concepts involving stretching the space behind star and condensing 227 00:11:55,240 --> 00:11:57,240 Speaker 1: it in front over like a warp drive, like a 228 00:11:57,240 --> 00:12:01,480 Speaker 1: warp drive. Yes, and don't think so. I don't think 229 00:12:01,480 --> 00:12:04,360 Speaker 1: the technology is therey yet right now, but I think 230 00:12:04,400 --> 00:12:07,120 Speaker 1: it might be possible. I think it would be hard 231 00:12:07,160 --> 00:12:10,080 Speaker 1: with the resources on the planet here, just because we 232 00:12:10,120 --> 00:12:13,080 Speaker 1: have such finite resources, you know what. We have to think, well, 233 00:12:13,679 --> 00:12:15,720 Speaker 1: how much are we taking away from Earth to try 234 00:12:15,720 --> 00:12:17,880 Speaker 1: and move something that's even bigger than the Earth. And 235 00:12:17,920 --> 00:12:20,679 Speaker 1: it's kind of hard. But I think it's a maybe 236 00:12:20,720 --> 00:12:22,600 Speaker 1: for me, And I wouldn't say no, I wouldn't say yes. 237 00:12:22,600 --> 00:12:25,320 Speaker 1: You might not fund it. Do you think it's possible? Yeah? Probably, 238 00:12:26,720 --> 00:12:29,520 Speaker 1: I believe to be possible because photons do carry momentum, 239 00:12:29,559 --> 00:12:32,600 Speaker 1: so if you were able to harness the energy from photons, 240 00:12:32,640 --> 00:12:36,280 Speaker 1: you wouldn't but like also like being able to put 241 00:12:36,280 --> 00:12:37,839 Speaker 1: that force into the Sun, you would be able to 242 00:12:37,920 --> 00:12:42,800 Speaker 1: move the Sun to use the Sun's own energy. Yeah, yeah, 243 00:12:42,840 --> 00:12:45,760 Speaker 1: I think that's impossible. Impossible, No, but I think we 244 00:12:45,760 --> 00:12:50,960 Speaker 1: could get away with lyon about it all right. You 245 00:12:50,960 --> 00:12:56,480 Speaker 1: have to be a very strong machine expensive. Is it possible? 246 00:12:56,880 --> 00:12:58,600 Speaker 1: I don't know. I feel like it caused a lot 247 00:12:58,679 --> 00:13:03,880 Speaker 1: of have ECU the whole circulating around its systems. That 248 00:13:03,920 --> 00:13:07,160 Speaker 1: would make it a bad idea, not impulsible, not impossible, yes, 249 00:13:08,559 --> 00:13:11,160 Speaker 1: all right, not a lot of confidence in the concept. 250 00:13:12,400 --> 00:13:15,720 Speaker 1: People were shocked. Sometimes I had to repeat myself because 251 00:13:15,720 --> 00:13:18,920 Speaker 1: people thought they must have misheard the question, because it 252 00:13:19,000 --> 00:13:23,559 Speaker 1: was so ridiculous to move a star, not none necessarily 253 00:13:23,600 --> 00:13:26,040 Speaker 1: a son, but just like a star is there and 254 00:13:26,080 --> 00:13:29,920 Speaker 1: you're moving it. M m m. Yeah, it's a crazy concept. 255 00:13:30,120 --> 00:13:33,120 Speaker 1: In fact, it's the central feature of one of my 256 00:13:33,280 --> 00:13:37,000 Speaker 1: favorite science fiction series by Alistair Reynolds, where they try 257 00:13:37,000 --> 00:13:41,240 Speaker 1: to tackle this problem of having an interstellar empire, you know, 258 00:13:41,280 --> 00:13:43,840 Speaker 1: where the distances are so vast it takes forever to 259 00:13:43,880 --> 00:13:46,480 Speaker 1: travel or even communicate, and they solve the problem by 260 00:13:46,600 --> 00:13:49,160 Speaker 1: dragging a bunch of stars close to each other so 261 00:13:49,200 --> 00:13:52,520 Speaker 1: they can have an interstellar empire that's not actually that big. 262 00:13:52,920 --> 00:13:55,040 Speaker 1: And so, you know, it appears in science fiction, it's 263 00:13:55,240 --> 00:13:58,839 Speaker 1: it's in the realm of people's thought. But not most people. 264 00:13:58,960 --> 00:14:01,560 Speaker 1: Most people thought this is a crazy idea. Oh, I see, 265 00:14:01,559 --> 00:14:04,320 Speaker 1: you've read about this in a science fiction novel. Yeah, yeah, 266 00:14:04,320 --> 00:14:06,920 Speaker 1: it's a cool idea, and you know, all best ideas 267 00:14:07,040 --> 00:14:09,280 Speaker 1: start in science fiction novels. All right, but it's a 268 00:14:09,280 --> 00:14:11,959 Speaker 1: crazy concept. Everyone out there thought it was kind of crazy. 269 00:14:12,080 --> 00:14:14,840 Speaker 1: It's just the idea of moving a star, much less 270 00:14:14,920 --> 00:14:17,719 Speaker 1: our star. Um, So there's all kinds of questions here. 271 00:14:17,760 --> 00:14:19,240 Speaker 1: Why would you want to do it, how would you 272 00:14:19,280 --> 00:14:21,640 Speaker 1: do it? What would it mean to do it? So 273 00:14:21,760 --> 00:14:24,800 Speaker 1: let's dig into all of these crazy questions. But first 274 00:14:24,880 --> 00:14:40,800 Speaker 1: let's take a quick break, all right, Daniel, So moving 275 00:14:40,800 --> 00:14:42,920 Speaker 1: a star? How do we move a star? Why would 276 00:14:42,960 --> 00:14:45,120 Speaker 1: we want to move a star? And how could it 277 00:14:45,400 --> 00:14:49,080 Speaker 1: even be practical or plausible to move an entire star 278 00:14:49,280 --> 00:14:52,320 Speaker 1: like our sun to somewhere else in the galaxy. It's 279 00:14:52,320 --> 00:14:56,800 Speaker 1: a crazy idea, mostly because stars are really really big. 280 00:14:57,240 --> 00:14:59,720 Speaker 1: I mean, the mass of our Sun is tend to 281 00:14:59,840 --> 00:15:05,000 Speaker 1: the thirty ms, and it's a lot of kilograms, you know, 282 00:15:05,520 --> 00:15:08,280 Speaker 1: it's uh, it's like a million earths. It's more than 283 00:15:08,320 --> 00:15:12,360 Speaker 1: a million earths, and the Earth already pretty big. Of course, 284 00:15:12,360 --> 00:15:14,760 Speaker 1: the Sun is already moving, it's orbiting the center of 285 00:15:14,800 --> 00:15:17,800 Speaker 1: the galaxy, and what we're interested in is changing its motion. Right, 286 00:15:17,840 --> 00:15:21,240 Speaker 1: And because F equals m, a tells you that you 287 00:15:21,320 --> 00:15:23,840 Speaker 1: need a force in order to move something with mass. 288 00:15:23,840 --> 00:15:26,160 Speaker 1: You want to accelerate the sun, move it somewhere else. 289 00:15:26,320 --> 00:15:28,480 Speaker 1: You've got to apply a force, and then I am 290 00:15:28,640 --> 00:15:30,880 Speaker 1: in the bigger something is the harder it is to 291 00:15:31,080 --> 00:15:33,360 Speaker 1: move it. Yeah, so it's it's hard to get Daniel 292 00:15:33,360 --> 00:15:36,440 Speaker 1: off the couch. Imagine getting the Earth off the couch, 293 00:15:36,720 --> 00:15:40,520 Speaker 1: and now imagine moving one point three million earth couch. 294 00:15:41,080 --> 00:15:43,040 Speaker 1: You know, since you're suggesting I'm so massive, maybe we 295 00:15:43,080 --> 00:15:45,120 Speaker 1: should be measuring the Sun and the units of Daniel 296 00:15:45,320 --> 00:15:48,760 Speaker 1: right here you go. Isn't it about to say one 297 00:15:48,760 --> 00:15:53,000 Speaker 1: point three million Daniels? That's right, I am the Earth. 298 00:15:53,040 --> 00:15:55,920 Speaker 1: I have eaten everything. Um, it's big. So you need 299 00:15:55,920 --> 00:15:59,760 Speaker 1: a really big force, Like we're talking cosmic scale engineering, 300 00:15:59,760 --> 00:16:02,000 Speaker 1: which is awesome to think about and to read about 301 00:16:02,000 --> 00:16:05,840 Speaker 1: in science fiction novels, but very difficult to actually pull off. Well. 302 00:16:06,200 --> 00:16:08,560 Speaker 1: To the basic idea is that you would build like 303 00:16:08,600 --> 00:16:12,840 Speaker 1: an engine or how would you even approach this problem 304 00:16:12,880 --> 00:16:15,720 Speaker 1: of moving a whole star? So you need a lot 305 00:16:15,760 --> 00:16:17,880 Speaker 1: of energy, and you need something that produces a lot 306 00:16:17,920 --> 00:16:20,560 Speaker 1: of energy, and the only thing nearby that sort of 307 00:16:20,600 --> 00:16:24,040 Speaker 1: produces enough energy to move a star is a star. 308 00:16:24,600 --> 00:16:27,040 Speaker 1: I mean a star is a huge fusion engine and 309 00:16:27,080 --> 00:16:31,160 Speaker 1: it's pumping out an enormous amount of energy, and the 310 00:16:31,200 --> 00:16:34,200 Speaker 1: simplest idea is to think about all the fusion energy 311 00:16:34,200 --> 00:16:36,880 Speaker 1: that is pumping out, mostly in terms of photons and 312 00:16:37,000 --> 00:16:39,960 Speaker 1: protons and stuff like that, and that's not creating a 313 00:16:40,000 --> 00:16:42,440 Speaker 1: force in the star because it's pointing in every direction. 314 00:16:42,480 --> 00:16:44,840 Speaker 1: Like the Sun pushes out and it pushes down and 315 00:16:44,880 --> 00:16:48,000 Speaker 1: pushes left to pushes right. Every time it shoots out 316 00:16:48,040 --> 00:16:50,560 Speaker 1: a photon to the left, that gives a little bit 317 00:16:50,560 --> 00:16:52,880 Speaker 1: of force to the right. But on the other side, 318 00:16:52,920 --> 00:16:55,000 Speaker 1: it's shooting out photons to the right, which gives it 319 00:16:55,000 --> 00:16:57,240 Speaker 1: a force to the less. It's balanced. It's like a rocket, 320 00:16:57,280 --> 00:16:59,600 Speaker 1: but it's shooting in all directions at the same time. Yeah, 321 00:16:59,600 --> 00:17:03,400 Speaker 1: exactly what would happen if you attached eight rocket engines 322 00:17:03,440 --> 00:17:05,520 Speaker 1: to yourself and set them all off at once, right, Well, 323 00:17:05,560 --> 00:17:08,840 Speaker 1: you wouldn't go anywhere, like in all different directions. Here 324 00:17:09,080 --> 00:17:11,919 Speaker 1: it perfectly balanced, perfectly balanced in all different directions. I 325 00:17:11,920 --> 00:17:15,120 Speaker 1: guess they would just squish you. But um, that's essentially 326 00:17:15,119 --> 00:17:17,119 Speaker 1: what the sun is right now. So the idea is, 327 00:17:17,560 --> 00:17:20,119 Speaker 1: instead of having the Sun pushing in all directions, to 328 00:17:20,200 --> 00:17:22,879 Speaker 1: somehow get it to only push in one direction, so 329 00:17:22,960 --> 00:17:26,320 Speaker 1: it uses its own energy to fly through the galaxy. Wait, 330 00:17:26,359 --> 00:17:29,119 Speaker 1: this is one idea. So one idea for moving the 331 00:17:29,160 --> 00:17:32,399 Speaker 1: Sun is to somehow coax it or fool it into 332 00:17:32,560 --> 00:17:36,440 Speaker 1: only shooting in one direction so it naturally moves. Yeah, 333 00:17:36,520 --> 00:17:39,000 Speaker 1: and you can't really change the way the Sun operates. 334 00:17:39,160 --> 00:17:41,840 Speaker 1: What you gotta do is sort of like reflected. So 335 00:17:41,960 --> 00:17:45,080 Speaker 1: you remember once we talked about solar sales. We talked 336 00:17:45,080 --> 00:17:49,280 Speaker 1: about like sailing through space by capturing the momentum of photons, 337 00:17:49,320 --> 00:17:51,920 Speaker 1: and the idea there was basically, have a huge mirror 338 00:17:52,320 --> 00:17:55,000 Speaker 1: and when a photon hits the mirror, it bounces off 339 00:17:55,400 --> 00:17:58,439 Speaker 1: and that pushes the mirror. Well, if you build a 340 00:17:58,520 --> 00:18:03,399 Speaker 1: really big solar sale, like the size of the Sun, okay, 341 00:18:03,440 --> 00:18:05,159 Speaker 1: and you put it next to the Sun, what he 342 00:18:05,200 --> 00:18:08,679 Speaker 1: would do is bounce some of those photons ones that 343 00:18:08,800 --> 00:18:10,840 Speaker 1: hit the solar sale, that would bounce it back the 344 00:18:10,880 --> 00:18:14,160 Speaker 1: other direction. So what did the sail get blown away? 345 00:18:14,359 --> 00:18:16,600 Speaker 1: The sale would definitely get blown away because it's a 346 00:18:16,640 --> 00:18:19,520 Speaker 1: huge solar sale, and that's the idea. But if you 347 00:18:19,560 --> 00:18:23,320 Speaker 1: could somehow attach it to the sun, right, attach it 348 00:18:23,400 --> 00:18:27,800 Speaker 1: to the Sun. The small problem building a sale the 349 00:18:27,840 --> 00:18:30,800 Speaker 1: size of the Sun and the small problem of attaching 350 00:18:30,800 --> 00:18:32,879 Speaker 1: it to the Sun. Well, actually that problem is not 351 00:18:33,040 --> 00:18:36,280 Speaker 1: that tricky because the Sun has a huge amount of gravity, 352 00:18:36,359 --> 00:18:38,520 Speaker 1: and so if you just put it in the right place, 353 00:18:38,960 --> 00:18:41,520 Speaker 1: then the amount of pressure you're getting on the solar 354 00:18:41,560 --> 00:18:44,359 Speaker 1: sale is balanced by the gravity of the Sun pulling 355 00:18:44,480 --> 00:18:46,439 Speaker 1: on it, and it would sort of stay in the 356 00:18:46,480 --> 00:18:48,960 Speaker 1: same place, would become in a sense part of this 357 00:18:49,080 --> 00:18:52,440 Speaker 1: like larger gravitational system of the Sun plus the sale, 358 00:18:52,640 --> 00:18:54,520 Speaker 1: so the Sun would hold it in the right place, 359 00:18:54,720 --> 00:18:59,080 Speaker 1: given like a gravitational chain there to to attach it to. Yeah, 360 00:18:59,119 --> 00:19:01,679 Speaker 1: so actually attaching a solar sale to the Sun not 361 00:19:01,840 --> 00:19:04,359 Speaker 1: physically like strapping it to the core of the Sun, 362 00:19:04,359 --> 00:19:05,880 Speaker 1: which is you know, sort of the way it works 363 00:19:05,880 --> 00:19:08,000 Speaker 1: in your brain, But you can do effectively the same 364 00:19:08,040 --> 00:19:10,919 Speaker 1: thing gravitationally. Did you actually run the numbers, like, wouldn't 365 00:19:10,920 --> 00:19:14,119 Speaker 1: it need to be super heavy for it to have 366 00:19:14,240 --> 00:19:18,520 Speaker 1: a gravitational effect on the Sun? Yes, But anything you're 367 00:19:18,560 --> 00:19:20,320 Speaker 1: building that's going to be the size of the Sun 368 00:19:20,560 --> 00:19:22,840 Speaker 1: is going to be heavy. If you build this thing 369 00:19:22,840 --> 00:19:26,240 Speaker 1: and it's like a micron a very thin aluminium or something, 370 00:19:26,520 --> 00:19:29,760 Speaker 1: a micron of thin aluminium, that's you know, one a 371 00:19:30,040 --> 00:19:33,360 Speaker 1: U y that's ninety million miles wide. That's still a 372 00:19:33,359 --> 00:19:35,679 Speaker 1: lot of aluminium. That's a lot of microns. But these 373 00:19:35,720 --> 00:19:38,040 Speaker 1: are even that much aluminium that we in in our 374 00:19:38,680 --> 00:19:45,080 Speaker 1: solar system. That's such an engineering question, man. I see, 375 00:19:45,080 --> 00:19:48,280 Speaker 1: if we could magically create matter that's what you're saying, 376 00:19:49,080 --> 00:19:52,399 Speaker 1: and make it a decize at the Sun, then no problem. 377 00:19:52,720 --> 00:19:55,280 Speaker 1: Now we probably do have enough materials if we like 378 00:19:55,400 --> 00:19:58,719 Speaker 1: liquidate you know, a planet or two, or you know, 379 00:19:58,880 --> 00:20:02,399 Speaker 1: some asteroids. There's probably enough stuff out there. Um, But 380 00:20:02,800 --> 00:20:05,000 Speaker 1: actually fabricating that there, I mean, we'll talk about that later. 381 00:20:05,240 --> 00:20:07,439 Speaker 1: It would cost a lot of money. The physics of 382 00:20:07,520 --> 00:20:10,119 Speaker 1: it sort of does make sense, yeah, And and the 383 00:20:10,160 --> 00:20:12,080 Speaker 1: reason is that, you know, the Sun puts out a 384 00:20:12,119 --> 00:20:15,160 Speaker 1: lot of energy. It makes like ten to the forty 385 00:20:15,280 --> 00:20:19,640 Speaker 1: five photons per second, and so it's pumping a lot 386 00:20:19,680 --> 00:20:23,160 Speaker 1: of energy. So you're saying, capture some of it and 387 00:20:23,320 --> 00:20:27,200 Speaker 1: have it pulled the Sun along with it gravitationally. Yeah. 388 00:20:27,280 --> 00:20:30,119 Speaker 1: So you'd imagine having a huge mirror, for example, in 389 00:20:30,200 --> 00:20:33,480 Speaker 1: the position this mirror next to the Sun, and half 390 00:20:33,520 --> 00:20:35,080 Speaker 1: of the photons will come out of the Sun would 391 00:20:35,119 --> 00:20:37,480 Speaker 1: get reversed in their direction and go the other way, 392 00:20:38,080 --> 00:20:40,280 Speaker 1: and so the net force would be. It would be 393 00:20:40,320 --> 00:20:42,760 Speaker 1: like if the Sun just had a huge flashlight and 394 00:20:42,800 --> 00:20:45,320 Speaker 1: it was shining it off into space, that would push 395 00:20:45,359 --> 00:20:47,719 Speaker 1: the Sun. It would get pushed in the direction away 396 00:20:47,760 --> 00:20:50,320 Speaker 1: from this beam, so in the direction of the solar 397 00:20:50,359 --> 00:20:53,440 Speaker 1: sale and so that would move the Sun. It would 398 00:20:53,440 --> 00:20:56,639 Speaker 1: accelerate the Sun. Now there's some limitations there, like you 399 00:20:56,720 --> 00:21:00,640 Speaker 1: can't have this solar salem in the plane the planets, 400 00:21:01,119 --> 00:21:02,320 Speaker 1: you know, like if you have in the plane of 401 00:21:02,359 --> 00:21:05,480 Speaker 1: the planets, then it's shooting a huge beam of photons, 402 00:21:05,960 --> 00:21:08,080 Speaker 1: you know, into the Solar system. You could like fry 403 00:21:08,119 --> 00:21:10,480 Speaker 1: a planet. We don't want to do that, So you 404 00:21:10,560 --> 00:21:12,640 Speaker 1: sort of limited also in the direction you can aim 405 00:21:12,680 --> 00:21:14,520 Speaker 1: this thing. You don't want to strap a huge rocket 406 00:21:14,520 --> 00:21:16,640 Speaker 1: to the Sun and pointed at the Earth for example. 407 00:21:16,800 --> 00:21:18,320 Speaker 1: I don't know. It's it's sort of sounds to me 408 00:21:18,400 --> 00:21:20,560 Speaker 1: like like if you're in a boat and you put 409 00:21:20,600 --> 00:21:22,240 Speaker 1: up a sail and then you blow in it with 410 00:21:22,400 --> 00:21:27,240 Speaker 1: your mouth and expecting that to move you across the sea, 411 00:21:27,560 --> 00:21:31,159 Speaker 1: Like you know, you're blowing on it, and somehow it 412 00:21:31,200 --> 00:21:32,919 Speaker 1: feels like it kind of feels like a closed system. 413 00:21:33,040 --> 00:21:35,600 Speaker 1: You're exactly right, if you were only blowing on the sail, 414 00:21:35,680 --> 00:21:38,040 Speaker 1: you'd go nowhere. But if you're blowing on the sail 415 00:21:38,119 --> 00:21:40,760 Speaker 1: and your friend is blowing the other direction, right, your 416 00:21:40,800 --> 00:21:44,560 Speaker 1: friends blows will actually push you somewhere. So if we 417 00:21:44,600 --> 00:21:47,120 Speaker 1: could just turn off half of the sun, that would 418 00:21:47,119 --> 00:21:49,720 Speaker 1: be great. This is effectively like turning off half of 419 00:21:49,720 --> 00:21:52,800 Speaker 1: the Sun and having it only blow in one direction. Oh, 420 00:21:52,840 --> 00:21:55,520 Speaker 1: I see, but and then but then and then the 421 00:21:55,560 --> 00:21:57,879 Speaker 1: sail would push also pull the sun. Yeah, well, that 422 00:21:57,920 --> 00:22:00,399 Speaker 1: the Sun would actually be pushing itself, right, to be 423 00:22:00,440 --> 00:22:03,520 Speaker 1: pushing itself because it's the photons that are going away 424 00:22:03,560 --> 00:22:07,040 Speaker 1: from the sale would be I'm pushing the Sun effectively. 425 00:22:07,400 --> 00:22:09,679 Speaker 1: And then the Sun would have this sale sort of 426 00:22:09,760 --> 00:22:13,680 Speaker 1: captured in its gravitational system, and so hopefully it would 427 00:22:13,720 --> 00:22:15,840 Speaker 1: be stable. But that's one of the problems is that 428 00:22:15,880 --> 00:22:19,280 Speaker 1: it's it might not be that stable a situation. You know, 429 00:22:19,359 --> 00:22:23,000 Speaker 1: if this thing like gets twisted of tiny bit, then 430 00:22:23,080 --> 00:22:25,280 Speaker 1: all of a sudden it's unstable and it's falling into 431 00:22:25,320 --> 00:22:28,600 Speaker 1: the Sun, and your four trillion dollar engineering project is 432 00:22:28,840 --> 00:22:32,879 Speaker 1: literally toast and the whole reason that you um melted 433 00:22:32,920 --> 00:22:37,240 Speaker 1: down Mars could have been for nothing. And the Martians 434 00:22:37,240 --> 00:22:39,800 Speaker 1: are pissed, all right, So that, but that's just one idea. 435 00:22:39,840 --> 00:22:42,159 Speaker 1: One idea is to use like a giant solar sale 436 00:22:42,200 --> 00:22:45,680 Speaker 1: and focus the Sun in one direction. What's another way 437 00:22:45,720 --> 00:22:48,520 Speaker 1: that we can maybe move the Sun. Another way is 438 00:22:48,560 --> 00:22:51,480 Speaker 1: to sort of use the fuel of the Sun to 439 00:22:51,640 --> 00:22:55,000 Speaker 1: power an enormous rocket. So you know, if you were 440 00:22:55,040 --> 00:22:57,000 Speaker 1: like a five year old and you thought how would 441 00:22:57,000 --> 00:22:58,560 Speaker 1: I do this? You say, okay, well, I'm just going 442 00:22:58,600 --> 00:23:01,040 Speaker 1: to build a huge rocket and attach it to the Sun. 443 00:23:01,520 --> 00:23:04,919 Speaker 1: And that's basically this idea. Um. But you know, a 444 00:23:05,040 --> 00:23:07,280 Speaker 1: rocket like that is going to take a lot of energy, 445 00:23:07,800 --> 00:23:10,399 Speaker 1: and fortunately the Sun is you know, it's a huge 446 00:23:10,920 --> 00:23:14,600 Speaker 1: ball of fuel. Basically it's helium, it's hydrogen. So if 447 00:23:14,600 --> 00:23:17,159 Speaker 1: you could build a big enough rocket, then you can 448 00:23:17,240 --> 00:23:19,840 Speaker 1: just use the fuel from the Sun itself to power 449 00:23:19,920 --> 00:23:22,400 Speaker 1: that engine and push the Sun. Wow. And how would 450 00:23:22,440 --> 00:23:24,959 Speaker 1: you push it again gravitationally? That's a great question. Like 451 00:23:25,200 --> 00:23:27,320 Speaker 1: you know, if you build an engine and you want 452 00:23:27,320 --> 00:23:29,560 Speaker 1: to move something, you imagine like strapping it to something. 453 00:23:29,560 --> 00:23:31,440 Speaker 1: But you don't want to strap this thing to the Sun, 454 00:23:31,520 --> 00:23:33,800 Speaker 1: and nobody can build a leather strap the side of 455 00:23:33,800 --> 00:23:36,879 Speaker 1: the Sun, so you'd actually have to build a two 456 00:23:36,920 --> 00:23:40,399 Speaker 1: directional rocket. So one that sort of pushes the rocket. 457 00:23:40,760 --> 00:23:44,200 Speaker 1: Another one that pushes the sun, so it keeps the 458 00:23:44,240 --> 00:23:45,879 Speaker 1: sun sort of in front of it. Imagine it's sort 459 00:23:45,920 --> 00:23:48,639 Speaker 1: of like a tug boat pushing a really big ship. 460 00:23:49,000 --> 00:23:50,560 Speaker 1: You can't touch the ship, so it has like a 461 00:23:50,560 --> 00:23:53,560 Speaker 1: little like a particle accelerator or a rocket to sort 462 00:23:53,560 --> 00:23:57,159 Speaker 1: of keep the sun in front of it. Does that 463 00:23:57,200 --> 00:23:59,560 Speaker 1: pause mean that made perfect sense or no sense at all? 464 00:24:00,359 --> 00:24:03,359 Speaker 1: No sense that helf to me, So so maybe step 465 00:24:03,400 --> 00:24:05,680 Speaker 1: me through it. So you build a rocket, you build 466 00:24:05,720 --> 00:24:07,800 Speaker 1: like a little space ship, right, and then you put 467 00:24:07,840 --> 00:24:09,879 Speaker 1: it out and in front of the sun for a 468 00:24:09,920 --> 00:24:12,400 Speaker 1: form in front of the in the direction you want 469 00:24:12,440 --> 00:24:14,560 Speaker 1: to go, or behind the sun the direction you want 470 00:24:14,600 --> 00:24:16,720 Speaker 1: to go. You put it behind the sun. So the 471 00:24:16,760 --> 00:24:18,399 Speaker 1: sun is in the direction you want to go, and 472 00:24:18,440 --> 00:24:20,919 Speaker 1: the rocket is behind it, and the rocket is burning 473 00:24:21,240 --> 00:24:24,359 Speaker 1: away from the sun. Huh okay, so the rocket is 474 00:24:24,800 --> 00:24:27,520 Speaker 1: pushing towards the sun. But then so that the rocket 475 00:24:27,520 --> 00:24:30,480 Speaker 1: doesn't fall into the sun, it shoots out a beam 476 00:24:30,520 --> 00:24:34,560 Speaker 1: in front of it that pushes the sun. Oh, you're saying, 477 00:24:34,560 --> 00:24:38,880 Speaker 1: shoot a beam of of what of whatever? You know, hydrogen, helium, 478 00:24:38,920 --> 00:24:41,920 Speaker 1: whatever comes out of your reaction. You can push anything 479 00:24:41,960 --> 00:24:44,200 Speaker 1: sort of blow on the Sun to get it to 480 00:24:44,280 --> 00:24:48,320 Speaker 1: movie blow on the Sun. Yes, so you're you're imagine 481 00:24:48,359 --> 00:24:50,879 Speaker 1: you're pushing some enormous ball or you have some like 482 00:24:51,040 --> 00:24:54,399 Speaker 1: twenty meters high basketball and you have trying to push it. 483 00:24:54,760 --> 00:24:57,360 Speaker 1: You're running and you're pushing, you're blowing on this thing 484 00:24:57,400 --> 00:25:00,240 Speaker 1: to keep it in front of you. Yeah, oh boy, 485 00:25:00,280 --> 00:25:03,720 Speaker 1: all right, it's complicated. My rocket is getting energy from 486 00:25:03,760 --> 00:25:06,639 Speaker 1: the Sun. Yeah, you're stealing matter from the Sun to 487 00:25:06,720 --> 00:25:09,280 Speaker 1: fuel it. So you have to like slurp stuff off 488 00:25:09,320 --> 00:25:11,960 Speaker 1: of the Sun, you know, the Sun's plasma and the 489 00:25:13,080 --> 00:25:15,440 Speaker 1: winds and all that stuff in order to fuel this thing. 490 00:25:16,280 --> 00:25:20,239 Speaker 1: Oh like the straw, how would you scoop things up 491 00:25:20,280 --> 00:25:27,280 Speaker 1: from the Sun. That's what. You could use magnetic fields 492 00:25:27,320 --> 00:25:31,360 Speaker 1: to sort of channel large areas of the Sun's radiation 493 00:25:31,560 --> 00:25:34,480 Speaker 1: into this thing to sort of grab it. Or you 494 00:25:34,560 --> 00:25:37,080 Speaker 1: might have to build like a dice in sphere to 495 00:25:37,200 --> 00:25:40,359 Speaker 1: capture more of the Sun's emissions and focus that into 496 00:25:40,400 --> 00:25:44,200 Speaker 1: your rocket. So it would be pretty complicated, built like 497 00:25:44,240 --> 00:25:47,879 Speaker 1: a giant catchers mid you sent to power your rocket 498 00:25:48,080 --> 00:25:51,159 Speaker 1: and whatever it is you're throwing at the Sun to 499 00:25:51,200 --> 00:25:53,800 Speaker 1: push it, so you grab some of the stuff it's 500 00:25:53,840 --> 00:25:56,120 Speaker 1: shooting out and you use it to push it back out. 501 00:25:56,280 --> 00:25:58,959 Speaker 1: That's right. And if you're worried that this would like 502 00:25:59,119 --> 00:26:01,560 Speaker 1: eat up the sun pretty quickly, the sound is pretty 503 00:26:01,600 --> 00:26:05,760 Speaker 1: big and even this ridiculous contraption would take a pretty 504 00:26:05,800 --> 00:26:09,200 Speaker 1: small fraction of the energy of the sun, so we 505 00:26:09,240 --> 00:26:11,080 Speaker 1: don't have to worry about that, all right. So those 506 00:26:11,119 --> 00:26:15,520 Speaker 1: are I think, two pretty um solid ideas. I don't know, 507 00:26:15,600 --> 00:26:18,280 Speaker 1: they seem pretty both pretty crazy, but they're out there. 508 00:26:18,359 --> 00:26:20,639 Speaker 1: Those ideas are out there, and they're not I guess 509 00:26:20,640 --> 00:26:24,280 Speaker 1: what you're saying is they're not impossible. They're physically possible, 510 00:26:24,840 --> 00:26:28,840 Speaker 1: but um, maybe maybe they might be engineeringly impossible. I 511 00:26:28,880 --> 00:26:32,639 Speaker 1: just quote it coined that term. Um. But but at 512 00:26:32,720 --> 00:26:35,280 Speaker 1: least they're technically possible to do these things. Yeah, there's 513 00:26:35,320 --> 00:26:37,560 Speaker 1: sort of like what you would come up with if 514 00:26:37,600 --> 00:26:40,440 Speaker 1: you had a chalkboard and ten minutes, uh to solve 515 00:26:40,480 --> 00:26:43,280 Speaker 1: this crazy problem. And we haven't really gotten that much 516 00:26:43,320 --> 00:26:47,040 Speaker 1: further than those first ideas, because it's a great minute. 517 00:26:48,520 --> 00:26:51,640 Speaker 1: That's the total amount of time. I think we're talking 518 00:26:51,680 --> 00:26:54,840 Speaker 1: about these ideas more than anyone has actually thought taught 519 00:26:54,880 --> 00:26:56,720 Speaker 1: them through. You know, there's a whole field and people 520 00:26:56,840 --> 00:26:59,919 Speaker 1: like published papers thinking about the details of these things 521 00:27:00,080 --> 00:27:03,000 Speaker 1: in more depth, but in sort of you know, big 522 00:27:03,040 --> 00:27:06,399 Speaker 1: idea concepts. How could you attack this problem, not like 523 00:27:06,440 --> 00:27:08,320 Speaker 1: the gritty details of how you would actually build this 524 00:27:08,560 --> 00:27:11,240 Speaker 1: How could you attack this problem? In general? There haven't 525 00:27:11,240 --> 00:27:14,399 Speaker 1: been that many more like great ideas for directions to 526 00:27:14,440 --> 00:27:17,479 Speaker 1: attack other than the solar sale and the massive engine. 527 00:27:17,600 --> 00:27:20,240 Speaker 1: Is there an actual journal where people discuss these things? 528 00:27:20,680 --> 00:27:25,840 Speaker 1: The International Journal of Physics, fan Fiction, International Journal of 529 00:27:25,920 --> 00:27:37,840 Speaker 1: Absurd Concepts, the Journal Engineeringly Impossible Concepts, engineeringly um. Alright, 530 00:27:37,880 --> 00:27:40,680 Speaker 1: well they're plausible, at least at least in the chalkboard. 531 00:27:40,880 --> 00:27:43,520 Speaker 1: They work, um, But I guess maybe a bigger question 532 00:27:43,600 --> 00:27:46,080 Speaker 1: is why would we want to do this? And is 533 00:27:46,119 --> 00:27:49,640 Speaker 1: it even practical or feasible? And so let's get into 534 00:27:49,680 --> 00:28:06,040 Speaker 1: those questions. But first let's take a quick break, all right, Daniel. So, 535 00:28:06,080 --> 00:28:08,480 Speaker 1: also on the table on our trukboard is this idea 536 00:28:08,640 --> 00:28:12,520 Speaker 1: of moving the sun our sun to another solar system 537 00:28:12,600 --> 00:28:14,440 Speaker 1: as a way to you know, see the see the 538 00:28:14,480 --> 00:28:17,120 Speaker 1: sites out there in the universe. And so we talked 539 00:28:17,160 --> 00:28:21,080 Speaker 1: about ways in which we could do it. Possibly they 540 00:28:21,080 --> 00:28:23,720 Speaker 1: sound kind of crazy, but it sounds possible now. But 541 00:28:23,800 --> 00:28:25,520 Speaker 1: now the question is why would we want to do it? 542 00:28:25,560 --> 00:28:28,280 Speaker 1: Why would we you know, we were pretty good here 543 00:28:28,320 --> 00:28:30,679 Speaker 1: in this part of the galaxy, things are pretty stable. 544 00:28:30,720 --> 00:28:33,199 Speaker 1: Why would we want to get off of our solar 545 00:28:33,240 --> 00:28:35,440 Speaker 1: system couch. I don't know. You sound kind of skeptical. 546 00:28:35,520 --> 00:28:37,239 Speaker 1: When we started out, you were sort of excited by 547 00:28:37,320 --> 00:28:39,800 Speaker 1: the possibility of doing something crazy that I told you 548 00:28:39,840 --> 00:28:42,520 Speaker 1: what the plans were. Now you seem like, I'm not 549 00:28:42,560 --> 00:28:47,360 Speaker 1: so sure this is going to happen. Well, engineeringly, he's 550 00:28:47,480 --> 00:28:51,560 Speaker 1: kind of ridiculous. To be honest, as an engineer, I'm 551 00:28:51,600 --> 00:28:53,360 Speaker 1: just like, you know what, to stay on the couch. 552 00:28:54,040 --> 00:28:57,440 Speaker 1: This is not this is not anywhere near a plausible 553 00:28:57,440 --> 00:28:59,640 Speaker 1: but you know, it's fun to think about. And so 554 00:29:00,200 --> 00:29:03,480 Speaker 1: or maybe maybe the reason the need isn't great enough, 555 00:29:03,520 --> 00:29:05,640 Speaker 1: you know, maybe if there was need, I would, you know, 556 00:29:05,680 --> 00:29:08,080 Speaker 1: get off my couch here and all right, let's talk motivation. 557 00:29:08,320 --> 00:29:14,560 Speaker 1: Let's motivation problem. Well, one reason, of course, it's just exploration, 558 00:29:14,960 --> 00:29:17,720 Speaker 1: Like if we wanted to explore other parts of the galaxy, 559 00:29:17,880 --> 00:29:19,360 Speaker 1: that this is one way to do it, and you 560 00:29:19,400 --> 00:29:21,760 Speaker 1: could effectively move all of humanity and all of our 561 00:29:21,800 --> 00:29:24,600 Speaker 1: resources and you wouldn't have to build spaceships. And send 562 00:29:24,600 --> 00:29:26,760 Speaker 1: people out there into space. And you know, space travel 563 00:29:26,840 --> 00:29:29,400 Speaker 1: is annoying, and who wants to be born on a 564 00:29:29,440 --> 00:29:31,560 Speaker 1: colony ship and die in a colony ship and never 565 00:29:31,560 --> 00:29:34,200 Speaker 1: sit but on a planet. That sounds kind of depressing. 566 00:29:34,800 --> 00:29:37,240 Speaker 1: And so you could sort of just gradually explore the 567 00:29:37,240 --> 00:29:40,440 Speaker 1: whole galaxy, you know, imagine like taking our star instead 568 00:29:40,440 --> 00:29:43,560 Speaker 1: of just sort of floating along and the galactic swirl 569 00:29:43,880 --> 00:29:47,120 Speaker 1: going the other direction. Then we could be like every 570 00:29:47,280 --> 00:29:50,120 Speaker 1: few years or so visiting a new solar system, maybe 571 00:29:50,160 --> 00:29:54,600 Speaker 1: like being on a cruise, maybe without the coronavirus. Yeah. Um, 572 00:29:54,800 --> 00:29:56,920 Speaker 1: so in the ideas that we would then then get 573 00:29:56,920 --> 00:29:58,640 Speaker 1: close to other stars so we can look at the 574 00:29:58,760 --> 00:30:01,920 Speaker 1: better or actually they like, you know, send probe out 575 00:30:01,960 --> 00:30:04,640 Speaker 1: to visit other solar systems. Both. I mean, you wouldn't 576 00:30:04,640 --> 00:30:06,360 Speaker 1: want to get too close because you don't want the 577 00:30:06,400 --> 00:30:09,640 Speaker 1: gravity of that star to interfere with the gravity of 578 00:30:09,640 --> 00:30:12,520 Speaker 1: our solar system and perturb some orbits and cause you know, 579 00:30:12,800 --> 00:30:16,160 Speaker 1: cataclysmic events. But close enough that you could send probes 580 00:30:16,160 --> 00:30:18,840 Speaker 1: in a reasonable amount of time. Yeah, and hey, it's 581 00:30:18,880 --> 00:30:20,520 Speaker 1: like a cruise, you know. You can either get off 582 00:30:20,720 --> 00:30:23,000 Speaker 1: and go explore the local scenery, or you could stay 583 00:30:23,040 --> 00:30:26,680 Speaker 1: on the boat. You're saying it's more practical to build 584 00:30:26,720 --> 00:30:29,920 Speaker 1: a giant engine around the Sun than it is to 585 00:30:30,160 --> 00:30:32,719 Speaker 1: just go a little bit further with a probe. I 586 00:30:32,760 --> 00:30:35,480 Speaker 1: think it's um, it's sort of a longer term plan. 587 00:30:36,120 --> 00:30:38,800 Speaker 1: You can build a ship to go visit one solar system, 588 00:30:39,000 --> 00:30:41,240 Speaker 1: but this is a plan to like visit all of them. 589 00:30:41,440 --> 00:30:43,200 Speaker 1: This is you're retired and you bought an r V 590 00:30:43,440 --> 00:30:45,479 Speaker 1: and you want to see the country, and so you 591 00:30:45,520 --> 00:30:47,400 Speaker 1: decide instead of taking a lot of little trips, you 592 00:30:47,480 --> 00:30:50,239 Speaker 1: just drive all around in your house. All right, So 593 00:30:50,440 --> 00:30:54,600 Speaker 1: the exploration is one reason, um, to get off the couch. 594 00:30:54,680 --> 00:30:57,160 Speaker 1: But what are some other possible needs that we might 595 00:30:57,200 --> 00:31:00,000 Speaker 1: have to do this. Well, we might see a day 596 00:31:00,000 --> 00:31:02,200 Speaker 1: injer to our solar system, and we might have a 597 00:31:02,240 --> 00:31:05,160 Speaker 1: lot of warning, Like we track all the other stars 598 00:31:05,160 --> 00:31:08,200 Speaker 1: in the galaxy, and it might be that, you know, 599 00:31:08,280 --> 00:31:11,880 Speaker 1: one swirl around the galaxy, we see something coming another 600 00:31:11,960 --> 00:31:14,600 Speaker 1: star is headed for a near collision with ours, or 601 00:31:15,160 --> 00:31:17,200 Speaker 1: you know, close enough that it could steal some of 602 00:31:17,240 --> 00:31:20,080 Speaker 1: the planets, and we might want to change the trajectory 603 00:31:20,120 --> 00:31:21,640 Speaker 1: of the Sun in order to sort of get out 604 00:31:21,640 --> 00:31:26,760 Speaker 1: of the way. If there's something that might destroy our 605 00:31:26,760 --> 00:31:28,920 Speaker 1: solar system, and then we might want to move it 606 00:31:28,960 --> 00:31:31,960 Speaker 1: somewhere else, yeah, or move our solar system out of 607 00:31:32,000 --> 00:31:34,560 Speaker 1: the way precisely like a rogue planet, or like a 608 00:31:34,640 --> 00:31:37,240 Speaker 1: rogue star. Well, a rogue planet would be really hard 609 00:31:37,280 --> 00:31:40,040 Speaker 1: to see far in advance because they're not bright, So 610 00:31:40,080 --> 00:31:41,800 Speaker 1: it has to be a star that's on a near 611 00:31:41,880 --> 00:31:44,800 Speaker 1: collision course with ours. You know, earlier in the history 612 00:31:44,840 --> 00:31:46,280 Speaker 1: of the galaxy, I think more of this kind of 613 00:31:46,280 --> 00:31:49,120 Speaker 1: stuff happened, and things are sort of calm er now 614 00:31:49,160 --> 00:31:51,920 Speaker 1: because all the bumps that have happened have mostly happened, 615 00:31:51,920 --> 00:31:54,440 Speaker 1: but there could still be more. And you know, in 616 00:31:54,480 --> 00:31:58,000 Speaker 1: the very far future when we collide with Andromeda, then 617 00:31:58,000 --> 00:32:00,680 Speaker 1: there's gonna be a lot of chaos, and so, you know, 618 00:32:00,920 --> 00:32:02,800 Speaker 1: long term planning, we might want to be able to 619 00:32:02,840 --> 00:32:05,360 Speaker 1: sort of shift where our house is. You know, you 620 00:32:05,440 --> 00:32:08,040 Speaker 1: might want to jump ship, yeah, or just take your 621 00:32:08,040 --> 00:32:10,000 Speaker 1: ship with you. You know, like if you saw a 622 00:32:10,080 --> 00:32:11,960 Speaker 1: huge rock about to fall in your house, it'd be 623 00:32:12,040 --> 00:32:13,800 Speaker 1: nice if you could wheel your house over to the 624 00:32:13,840 --> 00:32:17,920 Speaker 1: next block, right, Oh, I see, Instead of getting off 625 00:32:17,960 --> 00:32:22,360 Speaker 1: the couch, you'd be like, move my couch, Please call 626 00:32:22,440 --> 00:32:24,680 Speaker 1: the movers. Move the couch with you in it to 627 00:32:25,760 --> 00:32:27,840 Speaker 1: or move the whole house. Yeah, And it doesn't have 628 00:32:27,920 --> 00:32:29,479 Speaker 1: to be just that a star is going to collide 629 00:32:29,480 --> 00:32:32,080 Speaker 1: with us. We might, for example, spot a star and 630 00:32:32,120 --> 00:32:34,720 Speaker 1: be able to predict that it's going to go supernova, 631 00:32:34,840 --> 00:32:37,040 Speaker 1: and that could be really dangerous. If it's a star 632 00:32:37,120 --> 00:32:39,880 Speaker 1: goes supernova close enough, you know, within fifty or a 633 00:32:39,920 --> 00:32:42,880 Speaker 1: hundred light years, you could fry the Earth the X 634 00:32:42,960 --> 00:32:45,520 Speaker 1: rays and the gamma rays. It's a huge amount of radiation. 635 00:32:46,000 --> 00:32:48,200 Speaker 1: So if we get to a point where are the 636 00:32:48,240 --> 00:32:50,840 Speaker 1: science of supernovas is better, because right now it's really 637 00:32:50,840 --> 00:32:53,760 Speaker 1: hard to predict exactly when they blow. Then and we 638 00:32:53,840 --> 00:32:55,760 Speaker 1: see one coming, then we might want to get out 639 00:32:55,760 --> 00:32:58,800 Speaker 1: of the way before we all get sterilized. We'd have 640 00:32:58,880 --> 00:33:01,960 Speaker 1: to move the entire our solar system to be safe, right, 641 00:33:02,040 --> 00:33:04,400 Speaker 1: to sort of continue Earth as it is, yeah, or 642 00:33:04,480 --> 00:33:06,200 Speaker 1: we all have to get on ships and hope to 643 00:33:06,280 --> 00:33:08,320 Speaker 1: land on another solar system. But it seems to me 644 00:33:08,440 --> 00:33:10,840 Speaker 1: like we have one. We like, let's just move it 645 00:33:10,840 --> 00:33:12,960 Speaker 1: out of the way rather than abandoning it. It's starting 646 00:33:12,960 --> 00:33:15,720 Speaker 1: to seem more and more practical now. Huh Yeah, yeah, 647 00:33:15,800 --> 00:33:19,040 Speaker 1: I guess if it's that or getting fried by a supernova. 648 00:33:19,360 --> 00:33:25,600 Speaker 1: Let's do it this giant crazy rocket slash solar sale. 649 00:33:25,680 --> 00:33:28,240 Speaker 1: And there's just one more idea I wanted to put 650 00:33:28,240 --> 00:33:30,360 Speaker 1: out there, which is we're sort of far from the 651 00:33:30,360 --> 00:33:32,920 Speaker 1: galactic center, where like thirty thousand light years from the 652 00:33:32,920 --> 00:33:35,800 Speaker 1: center of the galaxy, which is a comfortable distance right now, 653 00:33:36,080 --> 00:33:38,400 Speaker 1: and you wouldn't want to be any closer because the 654 00:33:38,440 --> 00:33:41,200 Speaker 1: center of the galaxy is filled with crazy radiation from 655 00:33:41,200 --> 00:33:43,240 Speaker 1: all the stuff that's happening at the center. You've got 656 00:33:43,280 --> 00:33:47,000 Speaker 1: the black hole, gas and dust. He's getting squeezed and radiating. 657 00:33:47,320 --> 00:33:49,680 Speaker 1: So it's like a death zone. And we don't know 658 00:33:49,760 --> 00:33:52,600 Speaker 1: sort of the future of that death zone. Like as 659 00:33:52,640 --> 00:33:54,840 Speaker 1: the black hole in the center of the galaxy grows 660 00:33:55,000 --> 00:33:57,720 Speaker 1: and eats more stuff, that radiation from the center of 661 00:33:57,720 --> 00:34:00,400 Speaker 1: the galaxy might get larger and larger as you get 662 00:34:00,400 --> 00:34:02,480 Speaker 1: out to sort of the suburbs, and so we might 663 00:34:02,520 --> 00:34:05,040 Speaker 1: need to sort of like escape that radiation by pushing 664 00:34:05,040 --> 00:34:08,680 Speaker 1: ourselves further out and having a larger radius. Oh I see, 665 00:34:08,719 --> 00:34:11,120 Speaker 1: So get away from the dangerous part of the galaxy. 666 00:34:11,320 --> 00:34:13,680 Speaker 1: Moved to the suburbs, moved to the excerpts right with 667 00:34:13,840 --> 00:34:16,160 Speaker 1: our house, to the sub to the suburbs that just 668 00:34:16,239 --> 00:34:18,600 Speaker 1: moved to the suburbs. You know, put your house and 669 00:34:18,600 --> 00:34:20,480 Speaker 1: wheels and move it to the suburb. Yeah, we're already 670 00:34:20,480 --> 00:34:22,400 Speaker 1: in the suburbs, so this would be like moving to 671 00:34:22,440 --> 00:34:24,880 Speaker 1: a small town in the middle of nowhere. Might be safer, 672 00:34:26,719 --> 00:34:28,760 Speaker 1: all right, but then we wouldn't be able to explore anything. 673 00:34:28,880 --> 00:34:32,000 Speaker 1: We wouldn't be But you know, and thinking really really 674 00:34:32,040 --> 00:34:34,799 Speaker 1: long term, like we could use this strategy to go 675 00:34:34,920 --> 00:34:38,320 Speaker 1: visit other galaxies. We could like leave the Milky Way behind. 676 00:34:38,960 --> 00:34:42,040 Speaker 1: We could float our Sun and like go to Andromeda 677 00:34:42,120 --> 00:34:45,239 Speaker 1: or go to another galaxy entirely. Yeah, because we have 678 00:34:45,280 --> 00:34:48,080 Speaker 1: our own little bit battery pack, which is the Sun. Yeah, 679 00:34:48,120 --> 00:34:50,000 Speaker 1: we don't need anything else in the galaxy. It's not 680 00:34:50,040 --> 00:34:53,800 Speaker 1: doing anything for us. So our star and planets together 681 00:34:53,880 --> 00:34:57,080 Speaker 1: could survive out there in intergalactic space for a long 682 00:34:57,160 --> 00:34:59,959 Speaker 1: long time as we float towards another galaxy. All right, Well, 683 00:35:00,000 --> 00:35:02,360 Speaker 1: it's getting to the final part of this, which is easy. 684 00:35:02,560 --> 00:35:04,400 Speaker 1: Is it even practical? Let's say we did have a 685 00:35:04,440 --> 00:35:06,560 Speaker 1: big need to do it to move our solar system. 686 00:35:06,680 --> 00:35:09,719 Speaker 1: Is it even practical or feasible? I will say it's 687 00:35:09,880 --> 00:35:13,840 Speaker 1: definitely not. In the near future. You basically have to 688 00:35:13,880 --> 00:35:18,319 Speaker 1: be a civilization that's capable of building a dycen sphere already, uh, 689 00:35:18,440 --> 00:35:20,680 Speaker 1: in order to make this possible. And we are far 690 00:35:20,800 --> 00:35:23,440 Speaker 1: far from that, right because we don't even you need 691 00:35:23,440 --> 00:35:25,600 Speaker 1: don't where do you get all these materials and the 692 00:35:25,719 --> 00:35:28,440 Speaker 1: energy to build it? Yeah, you need a lot of 693 00:35:28,440 --> 00:35:31,319 Speaker 1: wrong materials, and so you need a very vigorous like 694 00:35:31,480 --> 00:35:35,000 Speaker 1: space mining operation. There are asteroids out there that are 695 00:35:35,040 --> 00:35:38,440 Speaker 1: just like, you know, a trillion tons of platinum or whatever. 696 00:35:38,760 --> 00:35:41,640 Speaker 1: You probably can find those materials, but that means you 697 00:35:41,680 --> 00:35:44,760 Speaker 1: have a heavy industry in space that can go search 698 00:35:44,800 --> 00:35:48,439 Speaker 1: these things and tow these asteroids and and fabricate these 699 00:35:48,480 --> 00:35:52,640 Speaker 1: things and put them together. I mean, we're talking about 700 00:35:52,680 --> 00:35:55,480 Speaker 1: a thousand years of technology. We haven't even started on 701 00:35:55,840 --> 00:35:58,480 Speaker 1: well a thousand years, I don't know. I mean, these 702 00:35:58,480 --> 00:36:01,239 Speaker 1: things accelerate rapidly, so it's hard to make very far 703 00:36:01,400 --> 00:36:03,840 Speaker 1: future predictions. But I can't imagine we're gonna have a 704 00:36:03,840 --> 00:36:08,960 Speaker 1: heavy space industry in the next forty years. So we're 705 00:36:09,000 --> 00:36:11,319 Speaker 1: just not there in terms of the industry required to 706 00:36:11,320 --> 00:36:13,719 Speaker 1: do it. But it let's say we even if we are, 707 00:36:13,840 --> 00:36:16,279 Speaker 1: is it it's still possible? Like it wouldn't be like 708 00:36:16,320 --> 00:36:18,640 Speaker 1: I feel like, if you move the Sun, wouldn't that 709 00:36:18,840 --> 00:36:21,960 Speaker 1: leave all the planets behind or disturb their orbits or 710 00:36:22,440 --> 00:36:25,759 Speaker 1: you know, just kind of you're risking throwing the whole 711 00:36:25,760 --> 00:36:28,200 Speaker 1: Solar system out of whack. I was really worried about 712 00:36:28,200 --> 00:36:30,520 Speaker 1: that also, and all of my reading I didn't find 713 00:36:30,560 --> 00:36:33,600 Speaker 1: anybody addressing that. You know, if if you give a 714 00:36:33,640 --> 00:36:36,360 Speaker 1: push to the Sun, you're not giving a push to 715 00:36:36,360 --> 00:36:38,279 Speaker 1: the planets, and so the planets are going to fall 716 00:36:38,320 --> 00:36:41,759 Speaker 1: behind a little bit, yeah, exactly, so they can go 717 00:36:41,800 --> 00:36:44,120 Speaker 1: into a different orbit. Yeah, or you could just lose 718 00:36:44,120 --> 00:36:47,680 Speaker 1: them entirely, and that would not be a good outcome. 719 00:36:48,239 --> 00:36:51,720 Speaker 1: So definitely, what if you blow on that too, Daniel, 720 00:36:51,760 --> 00:36:55,279 Speaker 1: What if we attach rockets and everything we want to keep. Well, 721 00:36:55,320 --> 00:36:57,520 Speaker 1: the problem is you can't build a solar sale on 722 00:36:57,560 --> 00:37:00,680 Speaker 1: the Earth because it's not solar, right, it doesn't produce photons. 723 00:37:01,280 --> 00:37:03,080 Speaker 1: And you don't want to build a rocket on the 724 00:37:03,080 --> 00:37:06,279 Speaker 1: Earth and then like have it push on the Earth 725 00:37:06,320 --> 00:37:09,640 Speaker 1: because that would be really destructive. So if you have 726 00:37:09,719 --> 00:37:12,320 Speaker 1: to just get tugged along by the gravity of the Sun, 727 00:37:12,760 --> 00:37:15,279 Speaker 1: which means you have to be pretty gentle, Like you'd 728 00:37:15,320 --> 00:37:19,319 Speaker 1: have to start out really slowly to not perturb all 729 00:37:19,360 --> 00:37:22,560 Speaker 1: these other orbits. You ramp up slow enough, then the 730 00:37:22,600 --> 00:37:26,000 Speaker 1: planets would follow, because I guess the orbits are sort 731 00:37:26,040 --> 00:37:28,640 Speaker 1: of stable and they would sort of stabilize. Yeah, but 732 00:37:28,760 --> 00:37:30,560 Speaker 1: I don't think we know that very well. And you 733 00:37:30,680 --> 00:37:32,399 Speaker 1: have to do a lot of calculations. You know. It's 734 00:37:32,440 --> 00:37:35,799 Speaker 1: it's like somebody is spinning plates on their fingers and 735 00:37:35,840 --> 00:37:40,040 Speaker 1: now you want them to also start running. Probably they 736 00:37:40,040 --> 00:37:43,680 Speaker 1: could do it, but you'd want to start really really gradually. 737 00:37:43,800 --> 00:37:46,360 Speaker 1: All right, Well, we'll we'll make those calculations annually and 738 00:37:46,400 --> 00:37:49,239 Speaker 1: submitted to the Journal of Physics. Fans fit. But the 739 00:37:49,239 --> 00:37:52,719 Speaker 1: good news is that none of these engines are that powerful. 740 00:37:52,840 --> 00:37:56,040 Speaker 1: I mean, even if you built this solar sale, it 741 00:37:56,080 --> 00:38:00,680 Speaker 1: would take like two hundred million years to go just 742 00:38:00,760 --> 00:38:03,279 Speaker 1: a hundred light years. And that's because the Sun is 743 00:38:03,320 --> 00:38:06,240 Speaker 1: just really massive and moving. It takes a huge amount 744 00:38:06,239 --> 00:38:09,319 Speaker 1: of energy. So this engine would just sort of like 745 00:38:09,680 --> 00:38:13,600 Speaker 1: very very gently, um push the Sun. It would take 746 00:38:13,640 --> 00:38:17,319 Speaker 1: two hundred and thirty million years before we even see 747 00:38:17,320 --> 00:38:19,120 Speaker 1: the next star. Well, the next star is only a 748 00:38:19,120 --> 00:38:21,200 Speaker 1: few light years away, but you know, a hundred a 749 00:38:21,280 --> 00:38:24,400 Speaker 1: hundred light years, it's not that far on galactic distances. 750 00:38:24,640 --> 00:38:27,800 Speaker 1: You know, the galaxy is a hundred thousand light years across, 751 00:38:27,840 --> 00:38:32,120 Speaker 1: so you're not visiting the entire galaxy very quickly using 752 00:38:32,120 --> 00:38:34,719 Speaker 1: that solar sale. And that's one reason why people are 753 00:38:34,760 --> 00:38:39,080 Speaker 1: thinking about the rocket engine approach, because even though it's ridiculous, 754 00:38:39,160 --> 00:38:41,319 Speaker 1: you know, to build a rocket engine that could push 755 00:38:41,320 --> 00:38:44,200 Speaker 1: the Sun, it is more powerful and has more potential 756 00:38:44,440 --> 00:38:46,160 Speaker 1: to push the Sun. Oh I see, that would do 757 00:38:46,239 --> 00:38:48,799 Speaker 1: it in a less amount of time. Yeah, you could 758 00:38:48,840 --> 00:38:51,000 Speaker 1: do it, like you could go a hundred light years 759 00:38:51,000 --> 00:38:53,840 Speaker 1: and only like two million years. But still it's a 760 00:38:54,040 --> 00:38:56,520 Speaker 1: that's a huge long term project. Like humanity has been 761 00:38:56,560 --> 00:38:59,799 Speaker 1: around for thirty thousand years. You're saying, let's have a 762 00:38:59,800 --> 00:39:03,319 Speaker 1: project that last two million years. Yeah, let's take a 763 00:39:03,360 --> 00:39:06,319 Speaker 1: trip the last two million years. Yeah. It's like you've 764 00:39:06,320 --> 00:39:08,520 Speaker 1: been dating somebody for a month and you propose going 765 00:39:08,520 --> 00:39:14,000 Speaker 1: on a fifty year cruise, Right, what could go wrong? 766 00:39:14,960 --> 00:39:18,960 Speaker 1: The coronavirus? Maybe those folks are going to be on 767 00:39:18,960 --> 00:39:21,800 Speaker 1: that cruise ship for fifty years. You never know that 768 00:39:21,960 --> 00:39:25,160 Speaker 1: never let him out? All right, So it's um, well, 769 00:39:25,239 --> 00:39:27,960 Speaker 1: but again it all depends on the knee. Like if 770 00:39:28,000 --> 00:39:29,719 Speaker 1: we have to move the Sun, then we have to 771 00:39:29,760 --> 00:39:32,480 Speaker 1: move the sun, even if it takes a few million years, 772 00:39:32,600 --> 00:39:35,160 Speaker 1: that's right. You know. Sometimes you just gotta call Bruce Willis, 773 00:39:35,320 --> 00:39:37,680 Speaker 1: whether you have the budget forward or not, because you 774 00:39:37,800 --> 00:39:40,680 Speaker 1: just got to solve the problem, and you know, freeze 775 00:39:40,760 --> 00:39:44,480 Speaker 1: him so he lasts million years and only bring him 776 00:39:44,480 --> 00:39:48,200 Speaker 1: out at critical moments. I think my favorite aspect of this, though, 777 00:39:48,320 --> 00:39:51,399 Speaker 1: is not thinking about how humanity might do it, as 778 00:39:51,440 --> 00:39:54,759 Speaker 1: awesome as that is, but thinking about aliens doing it, 779 00:39:55,040 --> 00:39:58,080 Speaker 1: because if aliens pull this off, we might see them 780 00:39:58,080 --> 00:40:00,799 Speaker 1: doing it, and that could prove they exist the same 781 00:40:00,840 --> 00:40:03,759 Speaker 1: way like spotting an alien civilization, building a dice in 782 00:40:03,840 --> 00:40:06,839 Speaker 1: sphere could prove that there are aliens. If we see 783 00:40:06,840 --> 00:40:11,839 Speaker 1: a son like doing weird things moving non gravitationally, that's 784 00:40:11,880 --> 00:40:14,719 Speaker 1: a clue that there's something interesting happening. I see. That's 785 00:40:14,719 --> 00:40:18,080 Speaker 1: like options. See like you know, option A Daniel does it, 786 00:40:18,160 --> 00:40:20,640 Speaker 1: Daniel doesn't want to do it. Option be somebody else 787 00:40:20,680 --> 00:40:23,840 Speaker 1: does it, some other human does it, No other human 788 00:40:23,880 --> 00:40:25,839 Speaker 1: wants to do it. To see, hey, look somebody else 789 00:40:25,920 --> 00:40:27,880 Speaker 1: is doing it. I'm done. That's all I needed to 790 00:40:28,640 --> 00:40:30,719 Speaker 1: And that's the ultimate stay on your couch, because then 791 00:40:30,719 --> 00:40:33,080 Speaker 1: the aliens do all the work and they take the trip. Right, 792 00:40:33,080 --> 00:40:35,280 Speaker 1: You're like, why don't you come visit us at our house. 793 00:40:35,360 --> 00:40:39,760 Speaker 1: We'll just make dinner. Just put a big sign out 794 00:40:39,920 --> 00:40:42,600 Speaker 1: saying open for dinner. Yeah, free bananas movies for any 795 00:40:42,640 --> 00:40:45,440 Speaker 1: aliens who come to visit. And it's not just spotting 796 00:40:45,480 --> 00:40:48,200 Speaker 1: aliens who are doing this so we can see that 797 00:40:48,239 --> 00:40:50,840 Speaker 1: they exist. But maybe they would come and visit. You know, 798 00:40:50,920 --> 00:40:54,279 Speaker 1: they could drag their star on their tour around the 799 00:40:54,280 --> 00:40:56,880 Speaker 1: galaxy and they could stop over here and tell us 800 00:40:56,880 --> 00:40:59,080 Speaker 1: all about the mysteries of the universe. All right, Well, 801 00:40:59,080 --> 00:41:01,320 Speaker 1: it's super fun to sort of think about these crazy 802 00:41:01,400 --> 00:41:07,080 Speaker 1: ideas and giant engineeringly complex projects, um, because you know, 803 00:41:07,120 --> 00:41:09,560 Speaker 1: it kind of forces you to think about what is 804 00:41:09,600 --> 00:41:13,560 Speaker 1: possible and how physics works out there in the universe. Yeah, 805 00:41:13,560 --> 00:41:16,799 Speaker 1: and a lot of things that are very normal, very 806 00:41:16,880 --> 00:41:20,840 Speaker 1: banal every day in our society seemed impossible and crazy 807 00:41:20,920 --> 00:41:23,160 Speaker 1: just a couple of hundred years ago. And so what 808 00:41:23,280 --> 00:41:26,440 Speaker 1: seems crazy to us now could be ho hum in 809 00:41:26,480 --> 00:41:29,080 Speaker 1: the future, you know, and maybe this is a thing 810 00:41:29,120 --> 00:41:33,080 Speaker 1: that our children's children's children's children will enjoy, getting to 811 00:41:33,120 --> 00:41:35,920 Speaker 1: pick the next solar system that humanity visits. You know, 812 00:41:35,960 --> 00:41:37,400 Speaker 1: you don't even need to get off the couch to 813 00:41:37,480 --> 00:41:41,799 Speaker 1: make more children. So that's that all works out. This 814 00:41:41,880 --> 00:41:44,920 Speaker 1: plan is perfect, all right, Well, I guess until then, 815 00:41:44,960 --> 00:41:48,520 Speaker 1: couch potatoes keep on dreaming. There's a lot that humanity 816 00:41:48,520 --> 00:41:51,000 Speaker 1: can do just thinking about these things from the comfort 817 00:41:51,000 --> 00:41:53,640 Speaker 1: of your couch. I prefer to refer to this community 818 00:41:53,680 --> 00:42:02,480 Speaker 1: as couchstronauts. Couch I see, fearless, non explore exactly explores 819 00:42:02,800 --> 00:42:04,880 Speaker 1: of the mind. All right, We hope you enjoyed that. 820 00:42:05,320 --> 00:42:15,200 Speaker 1: See you next time. Before you still have a question 821 00:42:15,239 --> 00:42:18,680 Speaker 1: after listening to all these explanations, please drop us a line. 822 00:42:18,719 --> 00:42:20,840 Speaker 1: We'd love to hear from you. You can find us 823 00:42:20,880 --> 00:42:24,640 Speaker 1: on Facebook, Twitter, and Instagram at Daniel and Jorge That's 824 00:42:24,680 --> 00:42:28,080 Speaker 1: one word, or email us at Feedback at Daniel and 825 00:42:28,200 --> 00:42:31,640 Speaker 1: Jorge dot com. Thanks for listening, and remember that Daniel 826 00:42:31,640 --> 00:42:34,160 Speaker 1: and Jorge Explain the Universe is a production of I 827 00:42:34,400 --> 00:42:37,839 Speaker 1: Heart Radio. For more podcast from My Heart Radio, visit 828 00:42:37,880 --> 00:42:41,360 Speaker 1: the I Heart Radio app, Apple Podcasts, or wherever you 829 00:42:41,480 --> 00:42:48,359 Speaker 1: listen to your favorite shows. Yea