> Personally, I'd be worried about the 5BK bug. You know, when our sun dies in about 5 billion years. I'd like to see the scientists solve that one...

At this point, we can all enjoy the pleasure of speculation without having to worry about living through the event. So, from the latest "Death of the World" simulations we have: an even toss-up between the Sun burning out in 5 By and expanding into a Red Giant by 8 By, swallowing up the Earth; versus the Andromeda Galaxy mashing its way right through the core of our Milky Way in 5-10 By in a gigantically stupendous stellar collision, only incidentally destroying Earth on the side. Your choice, take your pick! :).