Scaramouche
Registered Member
We know no such thing. It's limiting our search to assume all intelligent life must be like us, must do the things we do, and must show up as we do. Maybe they live in gas giants and travel via wormholes between them. Maybe they live underground and teleport between planets. Maybe they float around in the toxic (to us) atmosphere of planets like Venus, and we simply can't see them. Maybe a hive mind of little bug-like things on Titan that doesn't need our sort of technology to survive, yet is capable of thought and communication.We KNOW there are no intelligent lifeforms in our solar system, aside from Earth.