It would be a remarkable bit of luck that Elon stumbled into both Tesla and SpaceX, took on the role of lead rocket designer at spaceX, built both companies into unlikely leaders in their industry with powerful people trying to crush them all the way, while being a total idiot.
A similar but more charitable theory is that Elon is very good at leading a company to build actual hardware that has to solve hard physics problems. At twitter the primary challenge is managing people, and he is autistic and has no idea how to do this. He has no idea how normal people experience or use twitter, no idea how his tweets are felt by people, no idea how his employees feel about him etc.
all of these are things that don't matter when building a rocket or a car, while understanding people and politics is the ONLY thing that matters at twitter.
A similar but more charitable theory is that Elon is very good at leading a company to build actual hardware that has to solve hard physics problems. At twitter the primary challenge is managing people, and he is autistic and has no idea how to do this. He has no idea how normal people experience or use twitter, no idea how his tweets are felt by people, no idea how his employees feel about him etc.
all of these are things that don't matter when building a rocket or a car, while understanding people and politics is the ONLY thing that matters at twitter.