His claim (which I don't buy) is that the Secrets Act which allowed the feds seize Tesla's technology is being used to hinder fundamental science instruction. This is claimed by the types of people who say "cold fusion" is being hidden, or that String Theory is a psyop to spoil physics. They will point out that multiple textbook companies are all controlled by a single entity that determines what gets widely taught for political reasons.

All companies in China are part of the CCP, but it doesn't seem like they are trying to keep tech like AI secret. I doubt they hold any new fundamental math or algorithms we don't, but they are doing a good job at optimizing and creating new models.

I'm more curious as to why Elon reposted it. Is he just stoned tweeting or is there a hidden message about something he actually knows. (perhaps about OpenAI's relationship to Microsoft and the government)