You may not have it quite right. You may be looking for "utter failures". But that does not necessarily have to be the case. Zuckerburg had other ventures, it w

You may not have it quite right. You may be looking for "utter failures". But that does not necessarily have to be the case. Zuckerburg had other ventures, it wasn't that they were utter failures, it was rather that he just kept chugging along. I think that's a better answer to watch out for. Successful people are actively chugging along. They don't stop. I don't know these guys' stories too well but I would bet they actively did stuff all their lives.