To me “god’ is a metaphor for that unknowable ultimate reality. Be it disguised in a human mask with a long white beard or portrayed as an ether that resides in the deep black void. Atheism itself can be divided into 50 shades of grey, and most often used simply to express opposition to organized religion.

The problem is in the phrasing of the question. The question is not "why are you 100% certain that no Gods exists?" but "why are you certain that there is no evidence whatsoever that Gods exist?" Answer: "Because no one has presented any, ever. Believers always reply on supernatural arguments, and these are not evidence, but assertions and faith-based beliefs. That's why I don't have the same problem that agnostics have with this question. It's not a belief plucked out of the air, but rather a position based on the fact that no evidence exists, to date. Should anyone find such 'evidence' then we would look at it. I'm not holding my breath.

In theory a god could shrink to the size of an atom and hide on the other side of the cosmos for billions of years just for fun. You can’t prove me wrong, and I just might be right. Are you 100 percent sure I’m wrong or 99.99999% sure. Are you holding on to that . 00001% chance that god exists? Ask yourself why.

Do I think there's a god? No.
Am I open to the possibility that I don't know everything? Yes.

But it's not a question of whether or not I know everything.

It's a question of whether it is even POSSIBLE to know anything whatsoever about a supernatural being when you are part of the natural world. The standard-issue interventionist supernatural god is not knowABLE. That is agnosticism. If that god canNOT be known, then its mighty hard to form a belief concerning such a things. That's atheism.

Atheism is NOT about being sure god doesn't exist. It's about there being no reason whatsoever to believe he exists. Important distinction.

I don’t believe in god or gods, but there’s no way to prove it with 100% certainty. OTOH, if you assume that one or more gods do exist, then how would you find any evidence of that? I’d argue that since there’s no evidence of god — prayers go unanswered, good deeds go unrewarded, the devout get deathly illnesses, criminals live long happy lives, etc. — then it doesn’t make any sense to believe in god, so you may just as well operate as if they don’t exist whether or not it’s true.

As far as I am concerned, there is zero evidence that any god exists. Understanding probabilities, I would say that is 99.9 percent certainty. That is close enough 10.. percent for me to say that any discussion about the existence of any gods is simply moot or irrelevant.

I decided myself that there is no God and walked away from religion. I do not want to prove to anyone either way about God. My time is more precious than this shit.

Some things aren’t explainable nor would any Scientist try to disprove what isn’t testable.

I think most in philosophy of religion have given up “proofs for certain” (=sound deductive proofs) for the existence or nonexistence of God and turned to probabilistic (=inductive) reasoning. For example, the “argument from design” contends that the intricate order in the universe provides evidence that there probably exists a super intelligence who designed it, while the “inductive problem of evil” contends that the overwhelming amount of suffering, etc., in the universe provides evidence that there probably is no perfectly good overseer in charge of things. So then—with no deductive proof of either— the question becomes whether it is MORE RATIONAL to accept theism or atheism. And I think there is nothing wrong with “believing for certain” that one is more rational than the other.

All gods were invented by man to explain things they couldn't explain. One by one they all disappeared when science proved the origin of the problem. The reason I believe there is no overall god is because it has no effect on our lives. This can be seeing by two teams praying and one losing, people being born into starvation, weather disasters, earthquakes etc. We have explanations for all of it and because somebody made something up once doesn't make it real. Little kids' imaginary friends, The Boogeyman or as I commented on some other post, schmias. Schmias controls all of life. Do you believe it? Why or why not? It's a fun mental exercise to talk about things that don't exist but to ask one to prove a negative is like beating your head against the wall. There is absolutely no proof of a god and that's why I don't believe there is one. Because people like flat-earthers and people who don't believe that there was a moon landing still exist, idiots abound and so will gods.

I’m also not certain and keep an open mind about it. I suspect a lot of folks on this site where over indoctrinated in religion and now vehemently reject anything religious. If that was my case, Maybe I would too.

I am not certain and I do not need to be.
A god that can't be measured, that do not communicate in clear way, that hides itself even from statistics is virtually equal to an inexistent god.
even if it exists there is no way to know if he wants or what it wants.
So business as usual... Until an objective and not shy god appear... Treat them as they do not exist.¨

And of course there is the problem of self contradictory definition of gods
The YHWH for example claim to be perfectly good, and to be the origin of everything.
AND according to him evil exists.
SO if he is the origin of evil, how he can be perfectly good?
Thus, this god with this definition is impossible to exist.

There has never been any evidence of any God, or sky daddy that created the universe in six days and then rested on the seventh day. Any book that claims to be the writing of such a being was written by men. When I see undeniable scientific proof then I will examine that evidence and decide whether the evidence is accurate and possible.

I am pretty certain there is no sky daddy. There has been a trend away from the omnipotent ghost toward a fuzzier notion of a god, more like a spiritual connectedness. I don't buy that either but I am open to the possibility that there is something out there. I am most certain that there are things that I do not know.

But, whatever there may or may not be, it doesn't really matter in how I live my life.

Everything has a crack in it. That’s how the light gets in. - Leonard Cohen

I see no reason to give any credit to, say, the idea that a man can lift a truck with his mind. It's ridiculous and impossible. Try to prove me wrong, but until then I'm 100% sure he can't.

Same thing.

I'm 100% certain that there is no god. I think of it more in terms of what are the odds, than anything is possible. To take Dawkin's example of something that is non falsifiable, what if someone told you that there are magical fairies that live in the forest. The reason no one has ever seen these fairies is because they have the magical ability to become invisible whenever they detect they are being observed by a human. If you take the approach that anything is possible and that someday evidence may present itself, then you have to concede that there is some slim chance that there are indeed magical fairies living in the forest. Instead, what I do is I compare the odds that there are magical fairies living in the forest to the odds that this is just a story invented by some creative, imaginative person. I'm willing to say those odds are zero. So, no I don't believe that there are magical fairies living in the forest and for the same reason I also don't believe there's an invisible man up in the sky.

ET is up there and the man and the man in the moon - that's it! I believe that as strongly
as "believers'' believe what they believe! I do not believe in the supernatural,
except in the movies!

By the way, did you see, "History of the World, Part 1" ? You must see Moses
receiving the commandments!

very simple in my case. my definition of an atheist is on who does not believe in a personal god.
could there be supreme beings out there which we would consider god like? i don't know..

The question doesn't pertain to me because I'm not 100% certain that no gods exist, but I'm commenting because I'm bored and I've got a half-hour to kill before I go to sleep.

All comments and thoughts are my own and are valid for at least 5-10 minutes
thoughts may be subject to change without notice
stars are pretty

In the existence of god(s) debate, I find that there is really only one genuine answer: "I don't know, and you don't know, either." (Matt Dillahunty's voice ringing in my ears)

I'm atheist in the sense of rejecting the assertion of the existence of a god. I don't know that no gods exist. I know I haven't seen evidence to convince me that one does. To me, everything after the claim or the rejection of the claim really seems little more than clever banter, with my biased opinion favoring the non-believer as the more clever of the two.

I save my 100% certainty for things that I know that I don't know. I'm 100% certain that I don't know how to skydive. I'm 100% certain that I do not speak mandarin. I am 100% certain that I don't know how to transform into a kangaroo, but I'm certainly trying.

I'm also 100% certain that Sex Panther works 60% of the time, every time.

Lets face facts; gods were man made to control the rest of the population. This is not the Dark Ages. We have science now, technological leaps and bounds have been made, and of which, I'm sure, none was divine intervention. So ya, I'm 100% sure there are no gods. Aliens ? Nah, they would just pass by earth and say "look, they're still killing eachother, hurry past so they don't see us . . .

Because it is. End of story. Lol

What makes YOU so sure it's not?

Stop feeding the troll

There is not a shred of evidence to support the god belief, the stories are just that, stories.