Musk is the one who makes this possible. There's a reason why neither Bezos, Gates, nor Branson are anywhere close to this achievement, despite also having vast financial resources. I strongly dislike this attempt to erase Musk from the history of what's happening (mostly because people disagreeing with him politically). It is an absolute achievement of all the scientists and engineers at SpaceX. It is also a huge victory and validation for Musk and his way of leading. Both of these statements can be true simultaneously.