He got high on his own supply. The man created quite the aura by leveraging his less-than-glorious Paypal past, his taking over of Tesla and actually doing some interesting things with SpaceX. His companies achieved some genuinely impressive feats which he gladly attributed to himself and probably confined himself to his perceived genius and infallibility.

Hopefully, Twitter will be a teaching moment for him but so far he seems to just double down on his mistakes.