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1 | Max Tegmark | Life 3.0 | So in terms of, so if you think of a Boston Dynamics | 18:01.120 | 18:04.680 |
1 | Max Tegmark | Life 3.0 | human or robot being sort of with a broom | 18:04.680 | 18:07.680 |
1 | Max Tegmark | Life 3.0 | being pushed around, it starts pushing | 18:07.680 | 18:11.920 |
1 | Max Tegmark | Life 3.0 | on a consciousness question. | 18:11.920 | 18:13.320 |
1 | Max Tegmark | Life 3.0 | So let me ask, do you think an AGI system | 18:13.320 | 18:17.040 |
1 | Max Tegmark | Life 3.0 | like a few neuroscientists believe | 18:17.040 | 18:19.720 |
1 | Max Tegmark | Life 3.0 | needs to have a physical embodiment? | 18:19.720 | 18:22.320 |
1 | Max Tegmark | Life 3.0 | Needs to have a body or something like a body? | 18:22.320 | 18:25.720 |
1 | Max Tegmark | Life 3.0 | No, I don't think so. | 18:25.720 | 18:28.280 |
1 | Max Tegmark | Life 3.0 | You mean to have a conscious experience? | 18:28.280 | 18:30.560 |
1 | Max Tegmark | Life 3.0 | To have consciousness. | 18:30.560 | 18:31.640 |
1 | Max Tegmark | Life 3.0 | I do think it helps a lot to have a physical embodiment | 18:33.160 | 18:36.080 |
1 | Max Tegmark | Life 3.0 | to learn the kind of things about the world | 18:36.080 | 18:38.440 |
1 | Max Tegmark | Life 3.0 | that are important to us humans, for sure. | 18:38.440 | 18:41.480 |
1 | Max Tegmark | Life 3.0 | But I don't think the physical embodiment | 18:42.560 | 18:45.600 |
1 | Max Tegmark | Life 3.0 | is necessary after you've learned it | 18:45.600 | 18:47.120 |
1 | Max Tegmark | Life 3.0 | to just have the experience. | 18:47.120 | 18:48.760 |
1 | Max Tegmark | Life 3.0 | Think about when you're dreaming, right? | 18:48.760 | 18:51.400 |
1 | Max Tegmark | Life 3.0 | Your eyes are closed. | 18:51.400 | 18:52.600 |
1 | Max Tegmark | Life 3.0 | You're not getting any sensory input. | 18:52.600 | 18:54.240 |
1 | Max Tegmark | Life 3.0 | You're not behaving or moving in any way | 18:54.240 | 18:55.960 |
1 | Max Tegmark | Life 3.0 | but there's still an experience there, right? | 18:55.960 | 18:58.160 |
1 | Max Tegmark | Life 3.0 | And so clearly the experience that you have | 18:59.720 | 19:01.400 |
1 | Max Tegmark | Life 3.0 | when you see something cool in your dreams | 19:01.400 | 19:03.320 |
1 | Max Tegmark | Life 3.0 | isn't coming from your eyes. | 19:03.320 | 19:04.800 |
1 | Max Tegmark | Life 3.0 | It's just the information processing itself in your brain | 19:04.800 | 19:08.640 |
1 | Max Tegmark | Life 3.0 | which is that experience, right? | 19:08.640 | 19:10.920 |
1 | Max Tegmark | Life 3.0 | But if I put it another way, I'll say | 19:10.920 | 19:13.640 |
1 | Max Tegmark | Life 3.0 | because it comes from neuroscience | 19:13.640 | 19:15.120 |
1 | Max Tegmark | Life 3.0 | is the reason you want to have a body and a physical | 19:15.120 | 19:18.280 |
1 | Max Tegmark | Life 3.0 | something like a physical, you know, a physical system | 19:18.280 | 19:23.280 |
1 | Max Tegmark | Life 3.0 | is because you want to be able to preserve something. | 19:23.920 | 19:27.040 |
1 | Max Tegmark | Life 3.0 | In order to have a self, you could argue, | 19:27.040 | 19:30.840 |
1 | Max Tegmark | Life 3.0 | would you need to have some kind of embodiment of self | 19:30.840 | 19:35.840 |
1 | Max Tegmark | Life 3.0 | to want to preserve? | 19:36.400 | 19:37.960 |
1 | Max Tegmark | Life 3.0 | Well, now we're getting a little bit anthropomorphic | 19:38.920 | 19:42.400 |
1 | Max Tegmark | Life 3.0 | into anthropomorphizing things. | 19:42.400 | 19:45.200 |
1 | Max Tegmark | Life 3.0 | Maybe talking about self preservation instincts. | 19:45.200 | 19:47.280 |
1 | Max Tegmark | Life 3.0 | I mean, we are evolved organisms, right? | 19:47.280 | 19:50.560 |
1 | Max Tegmark | Life 3.0 | So Darwinian evolution endowed us | 19:50.560 | 19:53.520 |
1 | Max Tegmark | Life 3.0 | and other evolved organism with a self preservation instinct | 19:53.520 | 19:57.120 |
1 | Max Tegmark | Life 3.0 | because those that didn't have those self preservation genes | 19:57.120 | 20:00.560 |
1 | Max Tegmark | Life 3.0 | We can now, I think, quite convincingly answer | 1:00:01.560 | 1:00:03.360 |
1 | Max Tegmark | Life 3.0 | that question of no, it's enough to have just one kind. | 1:00:03.360 | 1:00:07.640 |
1 | Max Tegmark | Life 3.0 | If you look under the hood of AlphaZero, | 1:00:07.640 | 1:00:09.920 |
1 | Max Tegmark | Life 3.0 | there's only one kind of neuron | 1:00:09.920 | 1:00:11.080 |
1 | Max Tegmark | Life 3.0 | and it's ridiculously simple mathematical thing. | 1:00:11.080 | 1:00:15.000 |
1 | Max Tegmark | Life 3.0 | So it's just like in physics, | 1:00:15.000 | 1:00:17.280 |
1 | Max Tegmark | Life 3.0 | it's not, if you have a gas with waves in it, | 1:00:17.280 | 1:00:20.320 |
1 | Max Tegmark | Life 3.0 | it's not the detailed nature of the molecule that matter, | 1:00:20.320 | 1:00:23.240 |
1 | Max Tegmark | Life 3.0 | it's the collective behavior somehow. | 1:00:24.240 | 1:00:26.040 |
1 | Max Tegmark | Life 3.0 | Similarly, it's this higher level structure | 1:00:26.040 | 1:00:30.720 |
1 | Max Tegmark | Life 3.0 | of the network that matters, | 1:00:30.720 | 1:00:31.760 |
1 | Max Tegmark | Life 3.0 | not that you have 20 kinds of neurons. | 1:00:31.760 | 1:00:34.080 |
1 | Max Tegmark | Life 3.0 | I think our brain is such a complicated mess | 1:00:34.080 | 1:00:37.040 |
1 | Max Tegmark | Life 3.0 | because it wasn't evolved just to be intelligent, | 1:00:37.040 | 1:00:41.720 |
1 | Max Tegmark | Life 3.0 | it was involved to also be self assembling | 1:00:41.720 | 1:00:45.840 |
1 | Max Tegmark | Life 3.0 | and self repairing, right? | 1:00:47.000 | 1:00:48.760 |
1 | Max Tegmark | Life 3.0 | And evolutionarily attainable. | 1:00:48.760 | 1:00:51.920 |
1 | Max Tegmark | Life 3.0 | And so on and so on. | 1:00:51.920 | 1:00:53.560 |
1 | Max Tegmark | Life 3.0 | So I think it's pretty, | 1:00:53.560 | 1:00:54.720 |
1 | Max Tegmark | Life 3.0 | my hunch is that we're going to understand | 1:00:54.720 | 1:00:57.040 |
1 | Max Tegmark | Life 3.0 | how to build AGI before we fully understand | 1:00:57.040 | 1:00:59.520 |
1 | Max Tegmark | Life 3.0 | how our brains work, just like we understood | 1:00:59.520 | 1:01:02.600 |
1 | Max Tegmark | Life 3.0 | how to build flying machines long before | 1:01:02.600 | 1:01:05.560 |
1 | Max Tegmark | Life 3.0 | we were able to build a mechanical bird. | 1:01:05.560 | 1:01:07.800 |
1 | Max Tegmark | Life 3.0 | Yeah, that's right. | 1:01:07.800 | 1:01:08.640 |
1 | Max Tegmark | Life 3.0 | You've given the example exactly of mechanical birds | 1:01:08.640 | 1:01:13.280 |
1 | Max Tegmark | Life 3.0 | and airplanes and airplanes do a pretty good job | 1:01:13.280 | 1:01:15.680 |
1 | Max Tegmark | Life 3.0 | of flying without really mimicking bird flight. | 1:01:15.680 | 1:01:18.560 |
1 | Max Tegmark | Life 3.0 | And even now after 100 years later, | 1:01:18.560 | 1:01:20.920 |
1 | Max Tegmark | Life 3.0 | did you see the Ted talk with this German mechanical bird? | 1:01:20.920 | 1:01:23.880 |
1 | Max Tegmark | Life 3.0 | I heard you mention it. | 1:01:23.880 | 1:01:25.040 |
1 | Max Tegmark | Life 3.0 | Check it out, it's amazing. | 1:01:25.040 | 1:01:26.520 |
1 | Max Tegmark | Life 3.0 | But even after that, right, | 1:01:26.520 | 1:01:27.760 |
1 | Max Tegmark | Life 3.0 | we still don't fly in mechanical birds | 1:01:27.760 | 1:01:29.360 |
1 | Max Tegmark | Life 3.0 | because it turned out the way we came up with was simpler | 1:01:29.360 | 1:01:32.720 |
1 | Max Tegmark | Life 3.0 | and it's better for our purposes. | 1:01:32.720 | 1:01:33.840 |
1 | Max Tegmark | Life 3.0 | And I think it might be the same there. | 1:01:33.840 | 1:01:35.280 |
1 | Max Tegmark | Life 3.0 | That's one lesson. | 1:01:35.280 | 1:01:36.280 |
1 | Max Tegmark | Life 3.0 | And another lesson, it's more what our paper was about. | 1:01:37.520 | 1:01:42.520 |
1 | Max Tegmark | Life 3.0 | First, as a physicist thought it was fascinating | 1:01:42.640 | 1:01:45.800 |
1 | Max Tegmark | Life 3.0 | how there's a very close mathematical relationship | 1:01:45.800 | 1:01:48.240 |
1 | Max Tegmark | Life 3.0 | actually between our artificial neural networks | 1:01:48.240 | 1:01:50.800 |
1 | Max Tegmark | Life 3.0 | and a lot of things that we've studied for in physics | 1:01:50.800 | 1:01:54.560 |
1 | Max Tegmark | Life 3.0 | go by nerdy names like the renormalization group equation | 1:01:54.560 | 1:01:57.520 |
1 | Max Tegmark | Life 3.0 | and Hamiltonians and yada, yada, yada. | 1:01:57.520 | 1:01:59.800 |
1 | Max Tegmark | Life 3.0 | And when you look a little more closely at this, | 1:01:59.800 | 1:02:04.360 |
1 | Max Tegmark | Life 3.0 | you have, | 1:02:05.720 | 1:02:06.560 |
1 | Max Tegmark | Life 3.0 | at first I was like, well, there's something crazy here | 1:02:10.320 | 1:02:12.360 |
1 | Max Tegmark | Life 3.0 | that doesn't make sense. | 1:02:12.360 | 1:02:13.520 |
1 | Max Tegmark | Life 3.0 | Because we know that if you even want to build | 1:02:13.520 | 1:02:18.520 |
1 | Max Tegmark | Life 3.0 | a super simple neural network to tell apart cat pictures | 1:02:19.200 | 1:02:22.560 |
1 | Max Tegmark | Life 3.0 | and dog pictures, right, | 1:02:22.560 | 1:02:23.400 |
1 | Max Tegmark | Life 3.0 | that you can do that very, very well now. | 1:02:23.400 | 1:02:25.400 |
1 | Max Tegmark | Life 3.0 | But if you think about it a little bit, | 1:02:25.400 | 1:02:27.520 |
1 | Max Tegmark | Life 3.0 | you convince yourself it must be impossible | 1:02:27.520 | 1:02:29.080 |
1 | Max Tegmark | Life 3.0 | because if I have one megapixel, | 1:02:29.080 | 1:02:31.920 |
1 | Max Tegmark | Life 3.0 | even if each pixel is just black or white, | 1:02:31.920 | 1:02:34.160 |
1 | Max Tegmark | Life 3.0 | there's two to the power of 1 million possible images, | 1:02:34.160 | 1:02:36.960 |