> You know what's also really hard in a vacuum? Dissipating heat

Correct. The economics of space-based DCs comes down to permitting delays versus radiator mass.

At ISS-weight radiators (12 to 15 W/kg (EDIT: kg/kW)), you need almost decade-long delays on the ground (or 10+ percent interest rates) to make lifting worthwhile. Get down to current state-of-the-art in the 5 to 10 W/kg (EDIT: kg/kW) range, however, and you only need permiting delays of 2 to 3 years.

If there is a game-changing start-up waiting to be built, it's in someone commercialising a better vacuum-rated radiator.

Plus the whole thing of first mover advantage being a myth, especially in the tech industry

Eh, I think this is actually not a specifically American thing. More of a neo-liberal mindset. Competition may be good in the long term. But a monopoly now may mean more money in your pocket now. The tech giants definitely give the US some geo-political power in some cases but in general the US would be better off with more competition.

ed: @er2d, can't reply to your comment for some reason, so doing it here: I don't agree. In theory a monopoly decreases the necessity for R&D. Of course this becomes more complex if the R&D is funded or steered by the state. But look at the current state of LLMs. There is fierce competition between 3 US companies. But geopolitically it's the same as if there would be one monopoly. The US being the clear technological leader in an industry is not dependent on that industry being a domestic monopoly.

And for the Europe comment: Also don't agree. Look at Boeing & Airbus. Both are companies where the US & EU have decided that they need to ensure the existence of a domestic airplane manufacturer. So in these cases they support these companies (often in violation of international trade laws). But it has nothing to do with monopolies. If a state decides to support a company to ensure its existence, a monopoly is the logical consequence and not the aim. Because if that industry would be profitable it wouldn't need to be supported in the first place.

But all these tech companies are not in industries that would move off-shore or stop existing because they're not profitable enough, so it's an entirely different setting.

TSMC ?

Airbus ?