dsgrue3 on 05 March 2013
They'll find us before we find them. We're a young planet at 4.54 billion years compared to a Universe of 13.77 billion years, and an extremely young species at ~2 million years for hominids, far less for homo sapiens.
Just imagine everything that has been invented in the past 200 years and compare it to what we could accomplish in a billion (assuming we make it).
