Here’s a video out there where he’s talking to Twitter devs telling them they need a total rewrite because their stack is too complicated.

Someone gives him the slightest amount of pushback by asking what exactly he means by a rewrite and he cannot give a coherent answer. Someone else asks him to clarify what it is about their stack that is ‘crazy’. Elon gets very flustered and can only respond by calling the guy a jackass.

He knows absolutely nothing about programming.