The Fermi Paradox

[BigV]

All good points, xoB.

But the point about the distances is the dominant one, in my opinion. The universe is... reaaaaalllly big. Think about how precisely we have to aim our attention to hear the signals from intelligent life from the beepy-blinky things we've cast into the void. Now expand the distances by a gazillion. We wouldn't have to be off by very many fractions of an arc-second to miss something. Assuming we could comprehend what we were sensing in the first place.