We don't find an abundance of life because we're only searching through time and space. It's like searching for sharks in a goldfish bowl -- sure, sharks live in water, water exists in goldfish bowls, and with enough bowls, you'd logically encounter a sufficient volume of water that a shark should exist within. But no matter how many bowls you examine -- a hundred, a thousand, an infinite number, holding infinite gallons of water, no goldfish bowl will contain a shark -- because that's not where sharks live.

We cling to the fallacy that because our society exists in space and time, among matter and energy, that these are the dimensions in which another intelligence must exist. We're wrong. We're the fish in the bowl, not the sharks in the ocean. Alien life is beyond us.