Hawking's Last Mistake

Listen up, genius! This joke is about Stephen Hawking, who was a big brain but also, you know, used computers. The joke is that he died because he accidentally turned off his life support instead of putting it on sleep mode. Get it? Like when you accidentally close your browser instead of minimizing it, but, like, with death. And FYI, you probably don't even know what sleep mode is, since you're probably running on dial-up.