>The labs have a perverse incentive to make things as expensive compute wise as possible. The only thing keeping this somewhat in check is competition, but it's intentionally being gatekept by locking up the supply of computing infrastructure. With 3 players it's pretty easy to collude even if indirectly.

By all accounts the AI capex boom is justified up by actual usage, rather than some nefarious plan for "locking up the supply of computing infrastructure". Just look at people complaining about claude availability and anthropic adding various load-shedding measures a few months ago.