Not too much difference from tech entrepreneurs or “hackers” (in the HN sense) tbqh. Actually a lot of hackers do much crazier stuff than sell drugs, which is a pretty well established business. Selling boxes of cereal for $40 a pop is a lot more bizarre idea, for instance. Or look at any number of activities in the crypto world, which look like pure lunacy to outsiders, but have made a lot of money. The thing is, you often can’t tell whether it’s “big balls or small brains” until after the fact.