Also that sentence on "you need to go through YC three times in your lifetime, so you need 26 lifetimes" is absurd. I got a migraine trying to understand his line of reasoning.
Obviously you can fail to become a billionaire and make some non life changing amount of money and even make what to a lot of people is life changing, but for this outcome (which is still uncommon) you would be better off not trying to become a billionaire.