1. well, in the upside case, you will build something amazingly good and powerful and your investors will make a lot of money, and in the downside case your investors will be no more dead than everyone else, so we might as well give you money.” And so you’ll raise a lot of money.

In some, like, extremely non-effective-altruism sense, there is no downside to telling everyone “I’m starting a company that has a pretty good chance of killing us all.”