[Andrés]

Of course, God existing is a pretty big assumption to begin with.

Assuming there is no God is an equally big assumption.
It takes faith to accept God's existence, but it also takes faith to deny it.
Truly scientific thinking should give the benefit of doubt to something that although cannot be proven cannot be disproved either.

I like to think it's possible that there is somekind of superior being (or beings), although I doubt any religion is right about its nature.
If there is a god, He (or She or They) should be able to show himself in a way that even the most skeptic would have to admit He's real, and if He wants us to behave in any particular way He should give clear instructions of what He wants us to do.

The lack of such proof leads me to conclude that either 1- there is no god, or 2- He is powerless to affect our world or 3- He doesn't care what we do or what happens to us.

But those are just my personal thoughts. And it's not my intention to force my point of view on anyone else.