That’s not to say he’s dumb - it’s just that there is no one (!) who is generally smart - there is no generally applicable intelligence, experience always matters, and you always learn by doing.
It’s an illusion of the high IQ crowd that high IQ will means you will always succeed.
He is also always taking high risk bets. The X/politics/Trump bet paid off, in a way, but it also has its blowback.
edit also having said all this, it’s extremely unlikely that Europe will be successful at this. The future is US-China dominated.