Summarizer

The problem Elon is trying to address is a societal one, not a technical one. The amount of push back on clean energy generation and manufacturing prevents data centers on earth from being as feasible as they should be. He only got his newly opened xAI data center open using temporary generators on trailers and skirting the permitting process by using laws designed for things like traveling circuses.

The political issues in space are mostly launch related, right? Once you have the birds up nobody cares about anything except space junk and bandwidth. They're getting experience of solving those with Starlink already. And if you can find a way to put the satellites really far out there's plenty of space - inferencing satellites don't need to be close to Earth, low latency chat stuff can stay on the ground and the flying servers can just do batch. The politics on the ground is much harder. Countries own the land, you need lots of permits, electricity generation is in contest with other uses.

I don't think it's insane. It might not work or be competitive but it's not obviously insane. In a frictionless economy governed by spherical cows it'd be insane. But back here on Earth, AI is heavily bottlenecked by the refusal or inability of the supply chain to scale up. They think AI firms are in a bubble and will collapse, so don't want to be bag holders. A very sane concern indeed. But it does mean that inferencing (the bit that makes money) is constantly saturated even with the industry straining every sinew to build out capacity. One bottleneck is TSMC. Not much that can be done about that. The other is the grid. Grid equipment manufacturers and CCGT makers like Siemens aren't spinning up extra manufacturing capacity, again because they fear being bag holders when Altman runs out of cash. Then you have massive interconnection backlogs, environmentalists attacking you and other practical problems. Is it easier to get access to stable electricity supplies in space? It's not inconceivable. At the very least, in space Elon controls the full stack with nearly no regulations getting in the way after launch - it's a pure engineering problem of the sort SpaceX are good at. If he needs more power he can just build it, he doesn't have to try and convince some local government utility to scale up or give him air permits to run generators. In space, nobody can hear you(r GPUs) scream.

The dominant factor is "balance of system" aka soft costs, which are well over 50%.[0] Orbit gets you the advantage of 1/5th the PV and no large daily smoothing battery, but also no on-site installation cost, no grid interconnect fees, no custom engineering drawings, no environmental permitting fees, no grid of concrete footers, no heavy steel frames to resist wind and snow loads. The "on-site installation" is just the panels unfolding, and during launch they're compact so the support structure can be relatively lightweight. When you cost building the datacenter alone, it's cheaper on earth. When you cost building the solar + batteries + datacenter, it (can be) cheaper in space, if you build it right and have cheap orbital launch. [0] https://en.wikipedia.org/wiki/Balance_of_system

Yeah, soft costs like permitting and inspections are supposedly the main reason US residential solar costs $3/watt while Australian residential solar costs $1/watt. It was definitely the worst and least efficient part of our solar install, everything else was pretty straightforward. Also, running a pretty sizable array at our house, the seasonal variation is huge, and seasonal battery storage isn’t really a thing. Besides making PV much more consistent, the main thing this seems to avoid is just the red tape around developing at huge scale, and basically being totally sovereign, which seems like it might be more important as tensions around this stuff ramp up. There’s clearly a backlash brewing against terrestrial data centers driving up utility bills, at least on the East Coast of the US. The more I think about it, the more this seems like maybe not a terrible idea.

Do you imagine there'd be less red tape involved in launching multiple rockets per day carrying heavy payloads? Like this argument just gets absurd: you're claiming building a data center on earth will be harder from a permitting perspective than FAA flight approval for multiple heavy lift rocket launch and landing cycles. Mining companies routinely open and close enormous surface area mines all over the world and manage permitting for that just fine. There's plenty of land no one will care if your build anything on, and being remote with maybe poor access roads is still going to be enormously cheaper then launching a state of the art heavy lift rocket which doesn't actually exist yet.

Ok, why are so many being built in Northern Virginia, rather than in the middle of nowhere where there will be no backlash? And permitting is challenging in part because it’s so different from place to place. Their permitting process with the FAA seems pretty streamlined.

> There's plenty of land no one will care if you build anything on I wonder if this is actually true.

From an engineering perspective, with today’s costs, yes. But don’t forget the political complications of dealing with all those countries that own the Sahara, that’s going to come at it’s own cost.

A former NASA engineer with a PhD in space electronics who later worked at Google for 10 years wrote an article about why datacenters in space are very technically challenging: https://taranis.ie/datacenters-in-space-are-a-terrible-horri... I don't have any specialized knowledge of the physics but I saw an article suggesting the real reason for the push to build them in space is to hedge against political pushback preventing construction on Earth. I can't find the original article but here is one about datacenter pushback: https://www.bloomberg.com/opinion/articles/2025-08-20/ai-and... But even if political pushback on Earth is the real reason, it still seems datacenters in space are extremely technically challenging/impossible to build.

It's much easier to find a country or jurisdiction that doesn't care about a bunch of data centers vs launching them into space. I don't get why we aren't building mixed use buildings, maybe the first floor can be retail and restaurants, the next two floors can be data centers, and then above that apartments.

I think data centers, in the areas where they are most relevant (cold climates), are going to face an uphill battle in the near future. Where I live, Norway, we've seen that: 1) The data centers don't generate the numbers of jobs they promise. Sure, during building phase, they do generate a lot of business, but during operations and maintenance phase, not so much. Typically these companies will promise hundreds of long-term jobs, while in reality that number is only a fraction. 2) They are extremely power hungry, to the point where households can expect to see their utility bill go up a non-trivial amount. That's for a single data center. In the colder climate areas where data centers are being promoted, power infrastructure might not be able to handle the centers (something seen in northern Norway, for example) at a larger scale, due to decades of stagnation. 3) The environmental effects have come more under scrutiny. And, unfortunately for the companies owning data centers, pretty much all cold-climate western countries have stringent environmental laws.

In America they have "temporary" jet turbines parked next to them burning gas inefficiently with limited oversight on pollution and noise because they are "temporary".

It's a matter of deploying it for cheaper or with fewer downsides than what can be done on earth. Launching things to space is expensive even with reusable rockets, and a single server blade would need a lot of accompanying tech to power it, cool it, and connect to other satellites and earth. Right now only upsides an expensive satellite acting as a server node would be physical security and avoiding various local environmental laws and effects