Yea I agree. He seems like a literal different person since the Twitter takeover. That, or he's always been like this but done a good job of hiding it.
Maybe he's just done too many 16-hour days in a row.
I don't personally agree with the direction of his work. Like, Mars? Why really? But the world would be a better place with more CEOs with longterm vision and persistence, and fewer twittertwits.
His work at Tesla and Space-X showed vision, persistence, focus, insights, … and now this?
EDIT: The downvoters might do well to keep in mind that "awesome" does not mean "admirable". "Spectacle" also does not.