Elon Musk kicked off his “Saturday Night Live” debut by declaring himself to be the first person with Asperger’s syndrome to host the US comedy sketch show. “Or at least, the first person to admit it,” he said. In his opening monologue, the eccentric tech entrepreneur behind Tesla and SpaceX offered an explanation for some of his past eyebrow-raising behavior. “Look, I know I say or post strange things but that’s just how my brain works. To anyone I’ve offended I just want to say, I reinvented electric cars and I’m sending people to Mars in a rocket ship,” he said. “Did you think I was also going to be a chill, normal dude?” Musk has previously drawn criticism for moves like publicly mocking the US Securities and Exchange Commission and calling a cave diver who rescued boys trapped in Thai...