Yawn. Elon might act like a child online but you only have to listen to technical interviews with him, or hear what intelligent people (that have actually worked directly with him) say about his mental processing to know he's not where he is just because he's good at lying and/or had money... he is actually 'smart'. The constant attacks on him from grifting 'academics' with a book to sell is getting as boring as Elon's online antics. Is he a 'genius'? Maybe, maybe not, there isn't a clear criteria as to when someone is a 'genius', but I'd put money on him being significantly smarter than the author of this article.