Poverello wrote:This is off the top of my head. Please rip it to shreds if you can.
An atheist who truly "lacks belief in a God or gods" is one who has never even conceived of such a thing as God or gods; But a man who calls himself an atheist is actively rejecting understood assertions about God or gods as false on a daily basis.
It is true that those who have never conceived of God are atheists. All you need is a lack of belief. But one who does not believe assertions need not be actively rejecting them. It could be the case that the assertion simply does not have enough evidence behind it in order for it to be accepted as true. So it is not really a rejection of an assertion, but a withholding of a decision on the matter. I can say 'I don't believe that to be true' without meaning 'that is false'. All I am saying is that I withhold judgement. I still lack belief, but do not have an active belief in the other direction.
I believe I can say this because the idea of God includes universal claims regarding our perception of everything, and when a man consistently perceives the world as godless, he is making a positive assertion in practice that the concepts about God or gods he has once understood are positively false.
I disagree with this. Say I live my life, experiencing as I go, and yet God appears nowhere in my perception. I don't need to make any positive assertion that the concepts about God I have heard are false. I can certainly do that if I want to, but I wouldn't be being very honest, and I don't need to. My perception of the world shows no god, and so my experience is one of a world where God does not appear. I think we are mixing up the existence of God with assertions that others make about God.
Therefore it can be said that atheism, when claimed, is necessarily an active belief that God/gods does not exist.
I don't think it can, since as you say yourself, an atheist can truly lack belief in a god or gods. The thing which I believe you have got wrong is that even if I assert that I am an atheist, I do not necessarily have an active belief that God is not real. Rather, from my own experiences, I lack the information that shows that God is there. This does not inevitably lead to a necessity to believe that God does not exist, it only means that I have no reason to believe.
Also, rejecting claims made by others does not mean that I have to inevitably believe that God does not exist. I am simply saying 'well, I don't believe you, and so I will refrain from accepting what you say as true for now'.
Consider this: There might be a beautiful beetle living half a mile under my house. Then again, there might not. Since I can't see it and probably never will, I don't waste my time wondering if it's there or not. Its impact on my life is nil. I don't believe in the beetle, but I don't actively assert it isn't there, either.