I'm glad I haven't known many like him. But I have worked for a few companies led by them.
I couldn't care less if he, himself, unravels. And I don't care much about Tesla since other automakers will step into its place if necessary. And, naturally, I really don't care about xitter. But I'll be kinda sad if SpaceX fails because of his idiocy but only because space rockets are so cool.
thepoliticalcat