People trying to think of startup ideas aren't doing it accidentally. They don't want ovens or baked goods. They want to be a founder and/or money. I feel like PG is only right halfway (which maybe means he's not right). He's implying it's wrong to do it that way (to try to think of startup ideas), that it won't work, but geez louise has it worked. To get funded, to get rich, to get an exit. He's also helped enable that path quite a bit.