I think the answer is pretty obvious: the skills are wildly different, and Musk obviously didn't even understand what he's supposed to be doing at Twitter. Tes

I think the answer is pretty obvious: the skills are wildly different, and Musk obviously didn't even understand what he's supposed to be doing at Twitter. Tesla is relatively simple: you've got to make cool cars. They have to work and people have to want to buy them. SpaceX is relatively simple: you've got to make rockets. They have to work, and be cheaper than the competition. With Twitter it seems he doesn't understand that there's nothing to build really. The software's already there. Twitter's main job is purely social, trying to please a whole bunch of governments and advertising agencies, as well as understanding why people post there and how to make them post more. There's no straightforward technical test to it, it's a delicate social balancing problem, and one awfully ill-suited to Musk's typical "move fast and break things" approach.