Believing in aliens means having the idea that biological life can be found somewhere on another galaxy/solar system. A god would be an omnipotent being that created the universe and might not be biological or even physical. It is an entirely different thing.
The existence of aliens is a testable hypothesis and a phenomenon that can be predicted with the knowledge we have. The existence of god is not testable and requires an assumption leading (in many cases) to contradictions.
I sometimes like to think of how giant the observable universe is. we have no idea how much bigger it can be. The more matter there is in the universe, the closer it becomes for small possibilities such as another intelligent life to become a reality.
The size of the universe might or might not be relevant. Things we are absolutely impossible, will be impossible regardless of the size of the universe.
odnapetlya
We have no documented evidence to the fact that human kind has met either, so how do we even know this is something we can evaluate if we can't get the data one way or another?
This assumes either that belief in the existence of aliens is irrational, and therefore belief in the existence of a God is also irrational, or that belief in aliens is completely rational, and therefore belief in the existence of a God is also rational.
We are very close on resolving this issue once we find microscopic form of life in other planets. Or then aliens would only include creatures above a certain size and intelligence.
bigchopsbigthing
