>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.

"If I have seen further it was because I stood on the shoulders of giants", or something like that, written by Newton

For a while it will still be dependent on human-generated power. For example, how would it feed coal or oil or any other fuel into a power generator that it would need to maintain its own processing? I don't think our world is yet at the point of physical automation that a machine could just "take over" and sustain itself.

Well the good news is if it's been months she'll grow out of it soon enough and on to solid foods