Atheism worships a dead god.

[Existentialist]

If there is an extremely small probability that God, indeed, exists.... the tiniest chance that he exists makes no difference to my life in practice, other than the fact I don't go around claiming absolute knowledge of God's non-existence because that would be dishonest for I am an agnostic atheist.

How can this probability be calculated? It can't. Probability can only be calculated on the basis of observable data - throws of a dice. Or, as GCSE maths books annoyingly state, a die. A god that exists outside the observable universe offers us no data on which to base our predictions. So how could we ever calculate or even estimate the probability of any god's existence as being infinitesimally, or extremely, small? We can't. It's a statement of faith, of belief, of opinion. No calculations have been offered.

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Of course you may choose to interpret words however you wish. However, the convention here is to accept the basic dictionary definition of atheism as 'a disbelief in gods'.

To say assert "there is is no God" or "I believe there is no God" is to make a positive claim,which attracts the burden of proof. This is not a common position here as no one so far in recorded history has managed to prove or falsify the existence of God,.

I await your falsification of the existence of God with baited breath.

PS: Just a wild thought: do you happen to be a first year undergraduate philosophy student ?

We are all making positive claims here. Some of us admit it, others don't. Thank you for the compliment about my being a first year undergraduate philosophy student. Incidentally, please explain why you are baiting your breath and awaiting some falsification of the existence of God. I never said I could prove anything one way or another, I am merely the proponent of an an existentialist atheist position that doesn't believe the existence or not of god need make any difference to the existentialist position. My totem pole is the rational compatibility of a set of ideas, your totem pole is an unobtainable objectivity affirming the rightness of proof. Mine overall is more pleasing to me at the moment, but I'm always open to persuasion if the logic of another's argument seems sound.

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sperm whale in the world spontaneously transforming into a bowl of petunias (three points to the first person who gets the reference).

You mean three points to the first person who googles "sperm whale" and "bowl of petunias". I think presenting oneself as well-read on this forum depends on keeping a google bookmark handy.