Can you ever believe that there is no God

[My imaginary friend is GOD]

Please read again to understand my question pocaracas.

It is about if knowledge that there is no such thing as God can lead to someone to do something...

Rhythm says no...

I said that due to the irrational behaviour of humans that this knowledge could lead to something. He tries to evade by changing the goal post to not having knowledge about God but I say you can have have knowledge that God does not exist (as does Rhythm) but that this knowledge can also lead to behaviour... (Rhythm previously disagreed with the last bit)

Well, sure, my knowledge that Santa Claus doesn't exist means I don't leave him milk and cookies and I do my own Christmas shopping instead of letting Santa give all the presents. But there's a rather large difference between those minor modifications in behavior and what you want to argue about Stalin. Atheism in itself is not very motivating, certainly not enough to cause anyone to kill someone.