Towards the claim of a God in general I find the position of hard atheism to be untenable. Especially some the definition of god is so broad. But if we mean an supernatural creative force behind the creation of the universe I think the claim that it absolutely does not exist is somewhat hard to defend.
Against the god Yahweh, yes, I am a hard atheist. He does not exist. 100% sure. And for the same reason that I know harry potter isn't real.
Against the god Yahweh, yes, I am a hard atheist. He does not exist. 100% sure. And for the same reason that I know harry potter isn't real.