Yes we could easily be looking at Tesla and SpaceX having failed they came so close. I think Musk is obviously an extremist which is fine but sometimes you have a management strategy that works and you apply it in different scenarios and it falls flat. Pissing off and calling out advertisers is probably not ideal, for example.

Yes, it is proven trial and error is the common strategy. The best strategy is trial and 'small' error. An Error that does not usurp your survival and that is different for different people.

For Musk that is more than $44 Billion.