Screaming Idiot posted:

We haven't found evidence of anything to the contrary, though. Even the "fossilized bacteria" the other poster referred to is, at best, a theory and not indicative of extraterrestrial life.

We're alone. And that's a good thing, because if there happens to be intelligent life out there, it will be hostile. Peter Watts' book Blindsight does a pretty good job of explaining why in the quote on this page. Look at human history -- the entirety of our technology is based on either conflict or information gained from conflict. Even our space program is a result of war research; we went to the moon just to whip out our collective dicks and wave them furiously at Russia.