I'd like to point out that most people like to assume that if intelligent life is indeed "out there", it is more technologically advanced than that on Earth. But what if all nearby civilizations are developing technologically at relatively the same pace? Or what if we are the smartest kids on the block?
Intelligent life could be quite common in our galaxy. After all, the ancient Egyptians were intelligent but they weren't transmitting radio signals.
Well I'm not sure if this is what Syme was getting at because I'm sitting at a bar and I'm currently simple jacked about to bring home cougars, but...Originally Posted by KT.
While life has existed on earth for significantly longer than "intelligent life" has, the way that intelligent life has accellerated so quickly here would indicate that, were we to find a planet with life, the odds of having both intelligent life, and intelligent life capable of receiving communication are pretty much the same.
That's still quite an assumption. Behaviorally modern humans have existed between 200,000 years and 50,000 years (depending on which theory you agree with) while radio waves were only theorized and discovered about 200 years ago and mass radio broadcast only began in the 1920s.
Therefore about 99.9% to 99.6% of the time intelligent life has existed on this planet, it hasn't been able to send or receive radio transmissions.
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