I think geohot is burying the lead in this text in his post with a lot of speculation.
It's not not that these specific models will become closed it's that the hardware/hosting vendors have an incentive to train models where inference is custom tuned to their chip's dimensions and VRAM.
The Chinese models do a great job of showing what's capable on consumer/prosumer hardware because of export restrictions but anyone entering the hardware space has the same incentives to undercut the frontier labs so they can sell more hardware.
It's also not clear if being at the forefront of inference quality really matters. The open source models appear to be doing a fine enough job of keeping up even if they're a few months behind. So it seems like there's not much of a technology moat for these labs other than the capital costs of training/serving.
> A home for poorly researched ideas that I find myself repeating a lot anyway
This "rent seeking class" is not a historical universal, regardless of how much college marxists insist that it is. Leaders can be good or bad, and they hold power in different ways. In America today we have bad leaders (across the entirety of the political spectrum) - and AI poses a lot of challenges in how they hold power. This is not to say Chinese leaders are any better - but the way they hold power is not challenged by AI. Business models will indeed adapt - but the condition is excellent, as they say.