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"We should build structures underneath Mars or the Moon because..." Earth is basically a beacon for alien civilizations — oxygen in our atmosphere gives us away instantly. And the crazy part? The Moon or Mars would preserve human-built structures for millions of years… but politics, not science, is why...

74,930 просмотров • 7 месяцев назад •via X (Twitter)

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David Kipping on why building AI megastructures might be the strongest evidence that we're alone in the universe: The argument starts with something we can already observe: how much energy AI consumes. "One thing we see already with these AI models is how energy hungry they are." P(David|Kipping) ∝ P(Kipping|David) P(David) extrapolates from there. If the only purpose of these data centers is to compute as much as possible as fast as possible, then they'll demand vast amounts of energy. And the orbital data centers that billionaires are getting excited about wouldn't be invisible to us. He explains that such structures would leave a detectable signature: "We should probably see that in James Webb. We could probably already put limits on the existence of essentially artificial rings... emitting a lot of infrared because they're warm." Then comes the unsettling turn. If humanity can build these machines, so could anyone else. And that carries a dark implication. "But if we make that breakthrough, I think the biggest point is it seems to imply that we are alone. Because if we can do it, surely someone else could have done it." This connects to what he refers to as Hart's Fact A. The strange observation that everything we look at in the cosmos appears completely natural: "Everything about the universe: we see stars, galaxies, clouds of plasma. Everything is consistent with nature. There's no hint anywhere of anything artificial, no engineering, nothing in the whole universe. As far as we can see, that's true. That is weird." The more powerful the technology we can imagine, the worse that silence looks. Dyson spheres everywhere, colonising wherever they want, faster-than-light spaceships if any of that is achievable, the sky should be full of evidence. It isn't. "It just massively exacerbates the Fermi paradox to the point where you'd probably conclude this is it." His honest conclusion: "It would make me even more pessimistic about the probabilities of intelligent life in the universe."

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Elon Musk just explained why artificial intelligence cannot physically survive on Earth. In a conversation with Jamie Dimon, Musk bypassed the romance of space exploration entirely. He answered with physics. Musk: “I think we can do probably somewhere around 1 terawatt per year of AI space compute from Earth, but we can do 1,000 terawatts or more from the Moon.” One terawatt. That is the thermodynamic ceiling of this entire planet. Every nuclear plant. Every solar farm. Every grid upgrade humanity can possibly build. All of it maxes out at one terawatt of AI compute. Earth is no longer a canvas. It is a bottleneck. So Musk is looking at the Moon. Not for flags. Not for footprints. For leverage. Musk: “Because the Moon has no atmosphere and about one-sixth Earth’s gravity, you can use an electromagnetic accelerator… You don’t need to use rockets to do AI data centers into deep space from the Moon. You can literally just shoot them like a railgun type of thing.” He is not describing a research outpost. He is describing a frictionless manufacturing hub on a celestial body. Mine the lunar surface for raw material. Build solar arrays and thermal radiators on-site. Construct an electromagnetic railgun. And fire AI superclusters directly into the vacuum of deep space. No supply chain from Earth. No atmosphere to fight. No fuel to burn on exit. A thousand terawatts. A 1,000x multiplier on the physical limit of human intelligence. And the Moon isn’t even the endgame. Musk: “We can build a self-growing city on the Moon faster than we could do so on Mars.” The Moon is the factory floor. Mars is the civilization. Musk: “If you warm up Mars, you could one day make Mars like Earth, meaning with liquid oceans and life and where you could walk outside without a spacesuit type of thing.” Musk: “I call Mars a fixer-upper of a planet, but it’s got a lot of potential.” A fixer-upper. That is how the richest man on Earth talks about an entire planet. Like a house with good bones and a bad roof. The rest of the industry is fighting over zoning permits and year-long environmental reviews to plug in a single server farm. Musk is building a magnetic launcher on the Moon to fire compute into the cosmos. For ten thousand years, humanity looked up at the stars and saw mythology. Musk looks up and sees bandwidth. We thought the ultimate purpose of spaceflight was exploration. It was always infrastructure. Earth was never the destination. It was the incubator.

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