Or someone whose ego is so inflated and actions are on a whim due to being vastly rich that he just had a wild hair up his ass and said he'd buy Twitter. Remember, the Twitter buyout bullshit was after he'd done some shenanigans failing to report buying Twitter shares. People complained (on Twitter no less) and he literally went "oh well I'll just buy Twitter then." Egg on face now that he's seen just how utterly insane his proposal was.