"Why Sam Altman (who can have the funding, talent, and the vision OpenAI has right now) can't just create OpenAI 2.0?" is an amazing question that also answers whats OpenAI's moat.

People speculated it was the funding, or attracting talent or having "access". Turns out it was none of them (obviously they all have a part, but having all three doesn't mean you can best OpenAI which gives you the fundemental reason why it is so hard to compete with them).