I am yet to see any strong micro econ or macro econ mechanistic explanation detailing how AI is going to create more wealth.
Not really sure what deeper explanation you're looking for?
It's no different from the cotton gin or steam engine or railroads.
Obviously, if you don't think AI results in greater efficiency then there wouldn't be more wealth. But that's a tech question, not an econ question. The economic side of things couldn't be simpler.
Efficiency of what exactly? And how do they do that? All of the NFT-turned-AI bros insist that the answers to those questions are “everything” and “by being awesome”, which sounds more like the thinking of someone that’s convinced they’re on the precipice of inventing magic or figuring out how to directly petition god