My answer: in 1 year aliens will come down to check out planet Earth, discover POB and say :"why the f*** didn't we think of that!" So they come down and steal POB along with some Russian potato vodka to use as fuel on the way back. And some cigarettes. There's more vodka than they can carry so they spill the rest all over earth and then casually flick a burning cigarette out of the window as they leave. Their plan was to blow up the Earth to cover the fact that it was the Earthlings who came up with POB and not them. As the burning cigarette lands, they realise they didn't take the ozone layer into account and mixed with the extremely flammable Russian potato vodka it makes an explosion so powerful that it creates a black hole. The black hole eventually swallows the whole universe. The end.