When you think of two celebrities that have very separate spots in your mind and you put them in the same place it gives you a curious sensation, like someone’s touching the funny bone on your elbow. Something’s not right. And then you see photos of them. Oh my God! Bill Gates in Shaquille O’Neal’s arms! They interfere with each other’s universes. They are human beings! They intersect. Woody Allen sitting next to Michael Jackson. It’s preposterous and it has to be stopped. And then there’s Einstein sitting alone on a porch in fluffy slippers reminding us that celebrity is relative.