Re:NASA Rover Finds Active and Ancient Organic Chemistry on ...
by pavelrub on Tuesday December 16, 2014 @07:48PM
(#8760483)
> it seems awfully unlikely that none of them have done so yet.
Based on what? How did you estimate the probability of a random intelligent civilization sending detectable (from Earth) Von Nuemann probes into the universe? For a probability of 1/1000 there could be hundreds of intelligent civilizations within our galaxy without any such probes, and the probability can be much lower than that.
Based on what? How did you estimate the probability of a random intelligent civilization sending detectable (from Earth) Von Nuemann probes into the universe? For a probability of 1/1000 there could be hundreds of intelligent civilizations within our galaxy without any such probes, and the probability can be much lower than that.