Musk is not smart at all. He only pretends to be so people like you defend him on the internet.
The guy has an degree in economics.
He tried getting a degree in Physics, but he was not smart enough for it.
Only 2 years after he left school, and after the school got a huge donation, did he get the degree.
The guy has lived their entire life on cheat codes. None of his “achievements” are his.