Your brother? Oh, I see.

Well, if I do remember from a book I've read, if life existed in two dimensions, it would have no mass. But such a world doesn't exist, at least not yet...

I'm a little fuzzy on quantum mechanics, so I have no idea if that hypothesis works ith it or not.

But, I just have to believe that the only law of physics the worlds share in common is the law of gravity.