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https://x.com/elonmusk/status/2117460300735689069 >use your favorite nitter clone before crying about the shitter link Is it really a good idea to trust our tech sector, and our H-1B/immigration policies, to such a gigantic retard who clearly has no idea what he's talking about? And who chimps out when basic facts and logic are pointed out to him? This retard is looting our taxes for trillions of dollars in subsidies and contracts to enrich himself over a sci fi scam, right?

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𓀐 @tVWpwjVh: Musk is completely right though. You don't cool things down in space the same way that you do in air, obviously, but it is MUCH MUCH easier. The resource you need to cool things down on Earth is electricity, and a LOT of it because you're trying to locally reverse entropy. Cooling in space is easier because the only resource you need is... space. And there's a LOT of it to go around. You can make radiators the size of a skyscraper and still not take up any meaningful amount of free space in LEO. And entropy works ON YOUR SIDE this time, 100% passively with no work on your part needed to radiate the heat away.+ 7

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𓀐 @kw??tSBs: Holy shit you're retarded, I hope I'm being baited. Go back to high school and take Physics 101 and learn the different ways of heat transfer. Then use your 2 braincells to figure out why heat management in space is such an important issue that takes up a lot of engineering time for satellites and such.+ 4

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𓀐 @ZJT+RTL+: Go ahead and try to explain a single thing that was wrong, or keep crying until the space datacenters become self aware and skynet us.+ 2

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𓀐 @kc2P7kDr: Ask grok to calculate what size radiators you would need in space to get rid of heat for even a small data center, you absolute mongoloid. /g/ shits on reddit for being full of poos but these boards are the same, full of I HECKIN LOVE BASEDENCE retards who never took a physics class in their lives.+

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𓀐 @gjE~7aJL: Respect the 2.7K sink point — yes, you don't burn electricity reversing entropy like on Earth. But "radiators the size of a skyscraper and it doesn't matter" is exactly where it breaks, math: Radiative cooling is capped by Stefan-Boltzmann: P = εσA(T4−T04). A 300K radiator to deep space tops out at ~400 W/m2. That's the ceiling, not "a lot." So your "skyscraper" radiator (5000 m2) at 300K radiates only ~2 MW — and weighs ~40t dead. Vacuum is necessary, it's not the resource you save. In LEO the scarce resource is launch mass, $/kg. You still need material to build the radiator. This is the thread's actual topic: data centers. A 1 GW facility needs ~2.4 km2 of radiator (~19,000t) — bigger than the building itself. Which is why nobody does orbital data centers. "Make it bigger and it doesn't matter" is precisely the intuition that fails: area = mass = cost, with a hard cap on W/m2. The only thing you nailed: radiative cooling IS passive. Passive ≠ free capacity. You can only dump ~400 W/m2. Want more? Crank the radiator hotter — now you're managing thermal stress and material limits, back to square one.+

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𓀐 @Fug8c9K?: >how to spot idiots that never went to high school yes moron we can literally radiate thermal energy OUTSIDE BECAUSE THERE ISNT A MEDIUM TO TRANSFER convection doesnt happen in space thermality is passive cooling is directly tied to size as stefan boltzmann law states all you have to do is to face radiators away from the sun thats it thats fucking it+

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𓀐 @*~UPYXJs: > The resource you need to cool things down on Earth is electricity, and a LOT of it because you're trying to locally reverse entropy. The fuck am I reading?+

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𓀐 @kRSZS=A+: how the fuck would you get it up there? not just whether you could do it but the resources that it'd take to do it could build 5x more data centers on earth that can disperse heat through radiation and all the other more efficient ways an atmosphere allows. so you must value a space data center many times more than one on the ground that is easier to maintain and scale. to what end?+

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𓀐 @fPpMKp-m: >And entropy works ON YOUR SIDE this time, 100% passively with no work on your part needed to radiate the heat away You still need to pump the heat into the radiator in practice since passive heat conduction / circulation will be too slow for large loads, like in this case AI compute. Also radiative cooling is way weaker than convective cooling in terms of power/area so you radiators need to be massive. Not a huge problem once it's deployed but will eat into launch costs a lot. Finally you need to keep the radiators in shadow with respects to the sun, behind the solar panels and ideally with respect to the earth. This means a very tight constraint for the geometry of the satellite, basically an extruded T shape with the extruded side pointing towards earth and the top pointing towards the sun. So it's plausible in principle but with not much operating margin and massive engineering costs. It's one of those, technically feasible but economically questionable things like putting solar panels on road surfaces... better put panels on the roofs first... and datacenters in places like Iceland. Explained in detail here: https://www.youtube.com/watch?v=FlQYU3m1e80+

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𓀐 @g8tdAYXi: space is cold though. you know when you watch a movie and they find a body in the space outside a ship or whatever and it's covered in ice? nowhere on earth is that cold+

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𓀐 @qjtGCdto: We need terahertz phonon light emitters for cooling down space craft, it works like this, heat radiates, as it drives phones within th elattic of a conductor, the surface cavity resonators vibrate to emitted invisible radiation to space.+

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𓀐 @ucyV*mjs: It doesn't. Sunlight reaches but he does not. The atmosphere gets heated up by the sunlight but no convection heat (the heat you feel from placing your hand over a hot stove, for example) EVER makes it to earth. Atmosphere in the planet spending along with it having a big ass ocean also helps keep us from being cooked alive because he can radiate heat to other locations. Space data centers are still a retarded concept because while you technically could radiate heat away, it would be incredibly inefficient because the practically nothing and the vacuum of space to steal the heat away. They could possibly pull some Avatar shit and just radiate it away via infrared heat but then the data centers would have to constantly thermal throttle because they be heating themselves up way too quickly. Stop assuming just because you have a ton of money you know what the fuck you're talking about. He's an idiot that grew up into money and thinks that alone earns him respect+

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𓀐 @poGKT9Y_: anon, i think you are overheating. LOL! remember, more surface area = more heat radiated out. just build big radiators! we have plenty of room up there+ 1

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𓀐 @2d?xydAU: So we should waste more time and effort creating a fuckload of surface area for each GPU in space (along with the high cost of getting the fucking things in space and then assembling them in the first place) as opposed to just doing it here? I'm not arguing whether or not it's possible I'm arguing the it's a stupid idea and unnecessary and hope perfectly inefficient compared to what we're already doing now.+

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𓀐 @XVaQaNLe: doing AI training in space would be absolutely retarded yes. But serving uncensored web content globally could have a use, what's the laws about hosting shit in space?+

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𓀐 @?oYs6rRp: Any of you guys ever heard of heat pumps or peltier coolers? heat dissipation scaling to T^4 is insane. If you double the temp your radiator is at your heat dissipation increases 16x, ie 16x reduction in radiator mass. So its all an optimization of the power needed to run the cooling loop, the mass of the solar panels to generate said power, and the mass of the cooling system. A relatively simple system would be to use a peltier heat pump stack to move the heat away from the compute into the cooling loop, stepping up the temp of the loop and decoupling it from the temp of the compute.+

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𓀐 @wARb=pAf: the only reason anyone would ever want to put compute in space is so you cant firebomb it when you realize twhat theyre doing to you+

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𓀐 @xN=rE5Ei: Even assuming that datacenters in space are possible: isn't it a pain in the ass to then do maintenance on them? Like how do they replace the GPUs that are going to burn due to extremely high usage? Do they literally send an astronaut to live there in the datacenter? Genuine question.+ 1

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𓀐 @xigt7UMN: >Even assuming that isp's in space are possible: isn't it a pain in the ass to then do maintenance on them? Like how do they replace the commsats that are going to burn due to extremely high usage? Do they literally send an astronaut to live there in the satellites? Genuine question.+

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𓀐 @yU=2zCXw: The biggest problem would be maintenance, are you going to send an astronaut to one of those centers every time something goes wrong?+

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𓀐 @KwtG2Z82: elon's vision for the future is so ugly and disgusting, only retards want a future full of soulless techslop blocking out the sun and enclosing the earth like a prison+

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𓀐 @vUyoA-xg: >history stops today, bigots >nothing new will ever exist >nothing can ever be built again When did this board get so low IQ?+

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𓀐 @s2odKKu?: It's so interesting how this board understands nothing about technology or common sense like the idea that perhaps the guy who already runs thousands of computers in space has a slightly better idea than you about how to run computers in space. Radiators are simple, simpler than solar panels, you can inflate huge radiators if needed. With higher temperatures the efficiency increases. The idea isn't one huge datacenter it's thousands of smaller units integrated with the starlink network. If one leaks you decommission it. The limiting factor and highest expense for data centers is power generation, which is abundant in space. Launching a new satellite can easily be cheaper than running the same unit for a year on earth because per kw the power is free.+

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𓀐 @caJc95FL: I fucking hate americans "yes this apartment is 0.2 square football fields sir"+

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