Perfectly believable. I used to coach at startup events, and the dreamers who wanted to make the next Facebook were so exhausting. I eventually wrote up a a stock answer to give them: https://www.quora.com/Is-it-foolish-to-go-to-Startup-Weekend...

What really bothers me, though, is not the randos with this attitude. It's that some of them will grab enough money or power that they'll be able to live out their fantasy. And woe be unto any who hop on board. Quibi being the latest big example.