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Adam Frank: belief

22 Dec 2024 Lex Fridman Podcast #455 – Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life

“I mean, as long as you’re never trying to, “This is what experience is,” I think that’s kind of where you’re never going to have a causal account of experience just given.”

— Adam Frank

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Everything needed to verify it.

Speaker
Adam Frank
Attribution
Verified speaker
Claim type
belief
Recorded
22 Dec 2024
Publisher
Lex Fridman Podcast

Transcript context

…But there’s also the practical fact that it’s difficult to build a logical system on top of experience. It’s difficult to have the rigor of science on top of experience. And so as science advances, we might get better and better. The same is it’s very difficult to have any kind of mathematical or kind of scientific rigor to why complexity emerges from simple rules and simple objects, sort of the Santa Fe questions. But I think we can do it. I think there’s aspects of it. I mean, as long as you’re never trying to, “This is what experience is,” I think that’s kind of where you’re never going to have a causal account of experience just given. But you can do lots about, and that’s what the good work is to how do I approach this? How do I approach this in a way that’s rigorous that I can do experiments with also? But so for example, I was just reading this beautiful paper that was talking about in this is what we’re counting with our semantic information too. Causal closure. Love this idea. The idea that… So we talked about autopoiesis a while back, the idea that living systems, they are self creating and self maintaining. And so the membrane, cell membrane is a great example of this, right? The cell membrane, you can’t have a cell without a cell membrane. The cell membrane lets stuff through, keeps other stuff out. But the cell membrane is part of the processes and it’s a product of the processes that the cell membrane needs, right? In some sense, the cell membrane creates itself. So there’s this strange, it’s always with life, there’s always this strange loop. And so somehow figuring out how to jump into that strange loop is the science that’s ahead of us. And so this idea of causal closure accounting for how the, we talk about downward causation. So reductionism says everything only depends on the microstate. Everything just depends on the atoms. That’s it. If you know the Lagrangian for the standard model, you are done. Of course, in principle, you need God’s computer, but fine. In principle, it could be done. Causal closure, and I was just reading this great paper that sort of argues for this. There’s ways in which using Epsilon machines and all this machinery from information theory, that you can see ways in which the system can organize itself so that it decouples from the microstates. Now, the macrostate fundamentally no longer needs the microstate for its own description, its own account of the laws, whether that paper is true or not. It’s an example of heading down that road. There’s also Robert Rosen’s work. He was a theoretical biologist who he talked about closure to efficient cause that living systems are organizationally closed, are causally closed so that they don’t depend anymore on the microstate. And he had a proof, which is very contentious. Nobody knows if it’s some argue it’s true, some argue it’s not. But he said that because of this, living systems are not church-turing complete, they cannot be represented as formal systems. So in that way, they’re not axioms, they’re not living systems will not be axioms. id that because of this, living systems are not church-turing complete, they cannot be represented as formal systems. So in that way, they’re not axioms, they’re not living systems will not be axioms. They can only be partially captured by algorithms. Now again, people fight back and forth about whether or not his proof is valid or not. But I’m saying them giving you examples of when you see the blind spot, when you acknowledge the blind spot, it opens up a whole other class of kinds of scientific investigations. The book we thought was going to be really heretical. Obviously most public facing scientists are very sort of in that, especially scientific triumphant. So we were just waiting for the fight. Then the review from science came out and it was totally pro… It was very positive. We’re like, “Oh my God.” Then a review came out in Nature Physics and it was totally positive. Then a review came out in the Wall Street Journal, kind of criticized, not capitalism, but we criticized all industrial economies for that they had been touched by the blind spots, socialism, communism. It doesn’t matter. These extractive sort of had that sort of view that the is just reducible to resources. The Wall Street Journal gave us a great review. So it feels like there’s actually out there, there is some, among working scientists in particular, there is some dissatisfaction with this triumphalist view and a recognition that we need to shift something in order to jump past these hurdles that we’ve been arguing about forever and we’re sort of stuck in a vortex.…

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