Elon Musk has many fans, fewer than in the past but still many that believe he will shift us to renewable energy, find a solution for autonomous driving, build a humanoid robot to help/replace workers and get us safely to the Moon and Mars. All while providing global internet coverage, an alternative to traffic jams and long distance trains and a way to fix damaged brains.

The catch for Musk and the other companies he is significantly involved in how to split his time between them. It may not be that he needs to be present for day to day operations, but giving the positions he holds with Tesla and SpaceX, not being able to respond when he needs to make decisions about big projects or launch timelines or currently managing staff costs could slow down the companies even though he has regarded himself as the person to supply the momentum to get things down.