>some theoretical wall

Ever heard of this thing called climate change? AI needs power to run and what do you think will be prioritized during a period of extended brownouts--household ACs or supercomputer server banks/processor farms? This is all a pipe dream because AI hasn't got here in time to create solutions for the mass transfer of organic carbon to CO2 that humans have done along the way to enabling AI. At the very least it'll be a very tight balance between powering the AIs to help us solve the problems while the problems are getting worse and worse.