He's left to focus on his ideas for making money with Bitcoin. Compared to crypto, Twitter is just not very exciting.
Well, if you have more riches, you can do more charitable giving, so I don't see why he would not be motivated by the possibility of more riches.
We detached this subthread from https://news.ycombinator.com/item?id=29384379.
he seems also a bit into the transhumanist narrative
it's interesting to hear them chat but don't expect deep stuff, it's rich people having fun about markets and futures