in my opinion, after starting multiple failed companies and one that seems to be working so far, individual founders are the exception that prove the rule.
at the end of the day, it's just a ton of work. even very very hard working and smart people are not physically capable doing this much work on their own - in terms of actual output founding a company is like 6 or 7 fulltime jobs' worth of deliverables, shared by 2 or 3 founders.
if you're a single founder, i think you'd have to raise money very early and make some key hires quickly in order to succesfully do it. from what i can, that's usually the case with single founders who were previously part of an all-star founding team that had a good exit.
does anyone know if woz lifted weights or participated in any other kind of serious athletics when he was younger? he's always very fit and muscular in early pictures and as many athletes do, he's gained some weight in later years.
i only ask because some contemporary biopic films/representations have portrayed him as out of shape in his early years and that's clearly bullshit.