Most personally convincing reasons you don't believe.

[Aroura]

I had lots of little things that bothered me as a tween, teen and young adult. The bible having horrible lessons as well as contradictions was one, but even that and all the stupid answers from clergy and other adults did not kill my belief, just moved it towards deism.

I think the thing that got me, and still gets me most, is realizing Zeus and Posidon and Odin and Ra were all manmade...therefore so are all of them. A modern day priest sprinkling holy water on a person and speaking a benediction is not in any way different from an ancient priest doing whatever their magic rites called for.

Then along came Q, and I realized this hypothetical alien fit most definitions of a god. So even if it turns out there is a conciousness that created us, it would just be another form of life. Advanced technology seems like magic and all that. Nothing "supernatural" exists, nor can it. It's a nonsense word. If there is magic, or dragons, or gods, or telekinesis, it would turn out in all cases that they have a natural causes and/or explanations, just like it has with everything else.