General Discussion

His apparent intellectual shortcomings aren't caused by some congenital disability but by his constellation of personality disorders. He's willfully ignorant. He's a narcissist who thinks he's always right and that whatever he believes is true, and throughout his privileged life he's never been held to account. He always got his way because of his money and his bullying personality, so he was able to turn his beliefs into facts as far as his business was concerned. Since he always got his way and was able to force others to do what he wanted, he never had to learn much about anything that didn't affect his business. He remained comfortably ignorant about everything outside his world of real estate development, and being lazy on top of everything else, he never bothered to learn anything else. As a result, he presents as being as dumb as a bag of hair. His IQ, if it had ever been measured, is probably a lukewarm normal. He's functionally stupid because he's lazy and has been able to do what he wanted without having to know anything outside his little world of rich assholes.