[zeropoint]

Whether you're Atheist, Christian, Muslim or any other 'believer' in some state of affairs, does that belief mean you are certain beyond the possibility that you may be wrong?

[Pinkhead]

Of course not, no one can claim absolute certainty about anything, especially not regarding a god.

However, I cannot know with absolute certainty that It's not possible to know anything with absolute certainty.

[Tahooper]

Anybody who picked "I'm certain I'm right" should be ashamed.

[Cephalus]

I'm theist. It's arrogance to say you know 100% that you're right

[james22]

I am an athiest. I am absolutely certain that I am right in my belief that the belief in a deity does not stand up when subjected to the scientific method.

[Perseveranze]

'Ali ibn Abi Talib(ra), among others, would say:

"Even if the veil of the Unseen were lifted up, my certainty would not increase." ('Ali al-Qari, al-Asrar al-Marfu'ah, 286.)

Make of that what you will, but that's how many Muslims feel.

[mariachi]

I'm some sort of atheist - meaning that I don't think that the idea of a "God" even makes sense

but, of course, there is some very small possibility that I may be wrong

why, there is even a small chance (say, about 1 in a billion billion billion) that e.g. Islam or Christianity might be correct, and that I will have to spend an eternity in Hellfire

however, the possibility is so small that it's not worth loosing any sleep over it