This is why: http://en.wikipedia.org/wiki/Inverse-square_law http://en.wikipedia.org/wiki/Inverse-square_law Anyway, if you actually wanted to seek other plan

This is why: http://en.wikipedia.org/wiki/Inverse-square_law http://en.wikipedia.org/wiki/Inverse-square_law Anyway, if you actually wanted to seek other planets, you would need a HAL-style computer, sperm and eggs on ice, and an artificial womb. Then, life could realistically spend thousands and thousands of years traveling in space. If this is even possible then I suspect one or another lifeform would have done it by now. Since they apparently haven't, I doubt there's much out there. Fermi's paradox really.