Was Fermi right? We have yet to discover any signs of aliens, a troubling observation that has led to much speculation. One possible solution to the Great Silence is that nobodys out there. Its a conclusion that sounds impossible to believe, but there may be something to it. Ever since physicist Enrico Fermi posed the question — where is everybody? — people have been wondering why we havent seen any signs of extraterrestrial civilizations. As Fermi pointed out, the math just doesnt add up. Our galaxy, at 13 billion years old, has been around long enough for aliens to explore and colonize it many times over by now (recent work shows it should take less than a billion years, perhaps even as little as a few tens of millions of years). via Skeptical Inquirer
Posted on: Tue, 11 Nov 2014 17:44:55 +0000