My "expert" (/s) conclusion of Zuck is that he's a kid who knew some PHP and got really lucky that a website he made went "viral". He's got billions but is clueless, e.g. blowing a lot of money on animated VR avatars "because it's the future", and then blowing lots of money on AI. To be fair that's what the other dumb tech billionaires are doing too, they're building datacenters full of GPUs because they think throwing money at LLM will get them AGI, and they're desperate to be first.

(And no, I don't know if they'll reach AGI, my uninformed bet is: no).