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Sean Carroll: Is There Intelligent Life Out There in the Universe? | AI Podcast Clips
1F77Jy7BJzQ • 2019-09-09
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Kind: captions Language: en [Music] do you think there is intelligent life however you would like to define intelligent life out there in the universe my guess is that there is not intelligent life in the observable universe other than us simply on the basis of the the fact that the likely number of other intelligent species in the observable universe there's two likely numbers zero or billions and if there had been billions we would have noticed already - for there to be literally like a small number like you know Star Trek there's you know a dozen intelligent civilizations in our galaxy but not a billion that that's weird that that's sort of bizarre to me it's easy for me to imagine that there are zero others because there's just a big bottleneck to making multicellular life or technological life or whatever it's very hard for me to imagine that there's a whole bunch out there that have somehow remained hidden from us the question I'd like to ask is what would intelligent life look like the what I mean by that question in a war that's going is what if intelligent life is just fundamental it's in some very big ways different than our the one that has on earth that there's all kinds of intelligent life that operates at different scales of both size and temporal right that's a great possibility because I think we should be humble about what intelligence is what life is we don't even agree on what life is much less what intelligent life is right so that that's not even for humility saying there could be intelligent life of a very different character right like you could imagine that dolphins are intelligent but never invent space travel because they live in the ocean and they don't have thumbs right so they never invent technology you never events melting maybe the universe is full of intelligent species that just don't make technology right that that's compatible with the data I think and and I think maybe maybe what you're pointing at is even more out there versions of intelligence you know intelligence in inter molecular clouds or on the surface of a neutron star or in between the galaxies and giant things where the equivalent of a heartbeat is 100 million years on the one hand yes we should be very open-minded about those things on the other hand we all all of us share the same laws of physics there might be something about the laws of physics even though we don't currently know exactly what that thing would be that makes meters and years the right length and time scales for intelligent life maybe not but Ania were made of atoms atoms have a certain size we orbit stars or stars have a certain lifetime it's not impossible to me that there's a sweet spot for intelligent life that we find ourselves in so I'm open-minded either way I won't mind either being humble there's all sorts of different kinds of life or no there's a reason we just don't know it yet why life like ours is the kind of life that's out there yeah I'm of two minds too but I often wonder if our brains is just designed to quite obviously to operate and see the world in these timescales and we're almost blind and and the tools we've created for detecting things are blind yeah which is the kind of observation needed to see intelligent life and other skills well I'm totally open to that but so here's another argument I would make you know we have looked for intelligent life but we've looked at for it in the dumbest way we can rise by turning radio telescopes to the sky and why in the world would a super advanced civilization randomly beam out radio signals wastefully in all directions into the universe that just doesn't make any sense especially because in order to think that you would actually contact another civilization you would have to do it forever you have to keep doing it for millions of years that sounds like a waste of resources if you thought that there were other solar systems with planets around them where maybe intelligent life didn't yet exist but might someday you wouldn't try to talk to it with radio waves she would send a spacecraft out there and you would park it around there and it would be like from our point of view be like 2001 or there's an you know an monolith monolith so there could be an artifact in fact the other way works also right there could be artifacts in our solar system that are have been put there by other technologically advanced civilizations and that's how we will eventually contact them and we had just haven't explored the solar system well enough yet to find them the reason why we don't think about that is because we're young and impatient right like it would take more than my lifetime to actually send something to another star system and wait for it and then come back so but if if we start thinking on hundreds of thousands of years or million year timescales that's clearly the right thing to do you
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