I’m not sure which of the SF blogs in my blogroll I found this on, but anyway, it’s a good little short story that explains why we’re all alone in the universe. Well, it’s one explanation. Me, I favour the notion of galactic-scale natural disasters as a likely explanation, since very simple and not-uncommon cosmic events could wipe out life on a huge scale, and rather regularly, too.

But They’re Made out of Meat by Terry Bisson is a much more amusing possibility.