I think therefore I am and I have a grasp on reality.

I'm not 100% certain that I exsist.

I am certain of two things.

1. Donuts are one of the greatest creations of humanity.
2. There ain't no God(s).

Absolute Certainty, no. Philosophical paradox.

Until I see scientific evidence of any diety, I am 100% certain there are none.

I’m not certain about anything. The only thing I know for sure is that I exist. Everything else could just be hallucinations. Is there a god? It seems pretty unlikely and if there is he’s an asshole. Is there such a thing as horses. Well, I can touch them, ride them. Or i think I can and do. I’m skeptical about everything. I’m Bipolar One with mixed features so I don’t take anything for granted. Time will tell.

I tend to default to Descartes here. The only thing I can ever truly prove beyond a shadow of a doubt is that I myself exist. Anything else could be a hallucination, delusion, perceptive bias, a dreamstate, the result of demonic possession, or some other influence. But by questioning my own existence I prove it, because I cannot question my own existence without existing. Anything beyond that is potentially false information and so the best I can ever say is that I am reasonably certain based upon the evidence provided. With the potential exceptions of fundamental mathematic principles, which are apparently considered to be universal philosophical truth.

However, it depends on one's definition of a god. In this universe there are natural forces at work and some could say this can be likened to a god.

I'm 100% certain there are no gods.