This is the type of question designed to deflect responsibility to explain a claim something exist one has no proof for.
I stated — “Atheism is a lack of belief. ”
His response — True, but you stated that you believe something. you stated: “the reality that there is no god”. Where is your evidence of no God?
What answer will suffice to demonstrate to a believer that the “evidences” that claim for a god are strictly emotions and feelings or spectral evidences that are not valid for proof in any setting—but religion? The mere fact that he has to use that particular question, is evidence there is no gods out yonder in the heavens that tinkers in the lives of humans.
Ben-Life after religion is a fantastic and thoughtful blog. If you haven’t stumbled into it yet, take a look.