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🧠 Consciousness: The Mystery That Even Scientists Can’t Fully Explain In this video, Brian Cox talks about one of the biggest questions in science: what is consciousness? What does it really mean to experience being human? This question is becoming more important today because of AI. While artificial intelligence...

17,844 次观看 • 7 个月前 •via X (Twitter)

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David Chalmers on the one thing science can't explain: Consciousness is at once the most familiar thing in the world and the one science has almost nothing to say about. That's the puzzle Chalmers lays out in this early interview, and it's as disorienting today as it was then. His starting point is deceptively simple. Everything we know about the external world: subatomic particles, distant stars, the chemistry of life. We know through consciousness. It's the very first thing we have. And yet when we turn science around and try to explain consciousness itself, we hit a wall. "Consciousness is what we start with when it comes to knowing the world and looking out at the world… everything else is secondary." What makes this so strange is the asymmetry. We've made extraordinary progress understanding things that are genuinely remote and difficult quantum mechanics, stellar evolution, molecular biology. But understanding our own inner experience? Almost nothing. "It almost sticks out like a sore thumb in the scientific picture." This is what Chalmers would later formalise as the "hard problem of consciousness": not just explaining how the brain processes information or controls behaviour. Those are hard, but tractable. The real mystery is why any of that physical activity is accompanied by experience at all. Why is there something it feels like to be you? The question isn't abstract. It sits at the intersection of neuroscience, philosophy, physics, and AI. As we build systems that process language and reason about the world, the question of whether they are or could be conscious presses harder than ever. Chalmers doesn't offer an answer here. Only the sharpest possible version of the question.

Mateus — eu/acc 🇪🇺

14,034 次观看 • 3 个月前

Elon Musk just gave one of the most pro-humanity addresses you’ll ever hear — right in front of the Davos elites. It was inspiring. “We need to do everything we can to ensure that the light of consciousness is not extinguished.” Elon Musk said the mission of all his companies comes back to preserving and expanding human consciousness. MUSK: “the overall goal of my companies is to maximize the future of civilization.” “Like basically maximize the probability that civilization has a great future, and, to expand consciousness beyond Earth.” “So if you take SpaceX, for example, SpaceX is about advancing rocket technology to the point where we can extend life and consciousness beyond Earth, to the moon, to Mars, eventually to other star systems.” “I think we should always view consciousness, life as we know it, as as precarious and delicate. Because to the best of our knowledge, we we don’t know of life anywhere else.” “You know, I’m often asked, are there aliens among us?” “And I will say that I am one, but…they don’t believe me.” “I think if anyone would know if there are aliens among us, it would be me. And we have 9000 satellites up there, and not once have we had to maneuver around an alien spaceship.” “Bottom line is, I think we need to assume that life and consciousness is extremely rare. And it might only be us.” “And if that’s the case, then we need to do everything possible to ensure that the light of consciousness is not extinguished because we’re effectively, or the way I view it is, the image in my mind is of a tiny candle in a vast darkness, tiny candle of consciousness that could easily go out.” “And that’s why it’s important to make life multi-planetary, such that if there is a natural disaster or a manmade disaster on earth, that consciousness continues.”

Overton

55,725 次观看 • 6 个月前

David Chalmers on why consciousness is science's greatest unsolved problem: Science has mapped subatomic particles, distant stars, the chemistry of life yet it remains almost completely silent on the one thing we know most directly: our own conscious experience. In a rare early interview, philosopher David Chalmers explains why: "Consciousness is at once the most familiar thing in the world and the most mysterious. Consciousness is what we start with when it comes to knowing the world. I know that I exist. I know that I'm conscious. Everything else is secondary." And yet, despite this intimacy, consciousness sticks out like a sore thumb in the scientific picture. Chalmers points to a deep irony: science has made extraordinary progress on phenomena that are extraordinarily remote: subatomic particles, distant galaxies, the molecular machinery of biology while making almost no progress on the one thing closest to us. Why? Because science, by design, eliminates the subjective. "To do proper science, you have to be objective. You have to eliminate anything subjective from the picture." He uses heat as the perfect example. Physics gives us a complete account of heat molecules in motion, energy transfer, temperature gradients. It explains every objective aspect of the phenomenon. But it never explains what hotness actually feels like. "Science doesn't actually give a theory of the conscious feeling of hotness." This is what Chalmers calls the Hard Problem of Consciousness. You can trace every neural signal from your heat sensor along your nerves into your brain and still have explained nothing about the subjective experience of feeling warm. As interviewer Jeffrey Mishlove puts it: you can't even do science without a conscious mind to observe, interpret, and make meaning of data. Consciousness is the precondition for science itself and yet science has no framework to account for it. Chalmers' conclusion is striking: The methods of science may need to be expanded. Consciousness might not be something science explains away. It might be something science has to learn to start with.

Mateus — eu/acc 🇪🇺

31,628 次观看 • 4 个月前

Elon Musk: I'll be long dead before we're really a multiplanet species. But at least I'd like to see us make great progress in this direction. “Why do these things? I think this is important for maximizing the probable lifespan of humanity or consciousness. Human civilization could come to an end for external reasons, like a giant meteor, or supervolcanoes, or extreme climate change. Or World War III, or, you know, any one of a number of reasons. But the probable lifespan of civilization and consciousness, as we know it, which we should really view as this very delicate thing, like a small candle in a vast darkness, that is what appears to be the case. We're in this vast darkness of space, and there's this little candle of consciousness that's only really come about after 4.5 billion years. And it could just go out. I think that's powerful, and I think a lot of people will be inspired by that vision. And so the reason you need the million people is because there has to be enough people there to do everything that you need to survive. The critical threshold is, if the ships from Earth stop coming for any reason, does the Mars city die out or not? We have to pass that. People talk about the great filters, the things that perhaps, you know, we talk about the Fermi paradox and where are the aliens, and, well, maybe there is various great filters that the aliens didn't pass, and so they eventually just cease to exist. And one of the great filters is becoming a multiplanet species. So we want to pass that filter. And I'll be long dead before this is a real thing, before it happens. But I'd like to at least see us make great progress in this direction.” Source: TED, April 6, 2022.

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