Who prevents him from buying an atomic weapon and setting it off for a meme stunt or internet points
The army I would suppose. You had a point to start and, yes, the billionaire class is allowed to do almost anything they want but only an absolute moron could honestly believe he would be allowed nuclear weapons.
THAT’S THIS!!!
He went through a bunch of vegetables and, admittedly, it was pretty impressive how it handled them. But then with no hesitation it took off the tip of the carrot and he still decided to try his finger