Which is amusing in the case of Musk. As I've said over and over, his approach is to find an industry where most or all of the hard, expensive fundamental R&D has already been done (and paid for) by someone else, and then start a company to incrementally improve it and promise vast cost reductions from economies of scale.
That's what SpaceX is. That's what Tesla is. There's not really staggering heart-breaking Copernican-revolution work being done at either company. They're just applying incremental improvement and economies of scale to problems where the hard fundamental work was already done. The idea that it requires some special sort of unbelievable genius to come up with that plan, or that it's impossible to do without this specific (alleged) genius, is baffling to me.