Anyone who can look at that and think we are alone is a idiot.
:’)
“Anyone who can look at that and think we are alone is a idiot.”
http://io9.com/what-a-brand-new-equation-reveals-about-our-odds-of-fin-531575395
We could very well be alone in the sense that there is nobody out there close enough to our stage that they would have anything to say to us, and who could also communicate with us.
Intelligent lifeforms could have arisen, populated the galaxy(ies), and died out before Australopithecus climbed down out of the trees.