> Ellipses [sic], fundamentally, the concept of God is man-made, is it not?
I don't know. Depends what made man! But yes, I'll concede that the concept of a God is a man-made concept. Unfortunately though, there are many different man-made concepts for what a God is. See
http://en.wikipedia.org/wiki/God - personally, I find it easiest to think of a possible God as a "creator"
http://en.wikipedia.org/wiki/Creator_deity rather than some ever-present omnipotent entity, but I concede that if God
was an ever-present omnipotent entity, the chances of little ole me (or any human) being able to recognise that God are slim.
> In the absence of any evidence, rationally we have to assume that, do we not?
No! Two weeks ago we did not have evidence of the Higgs boson. It existed as a concept. Rationally, we had to assume it might exist or might not exist. I don't see a God as much different to that. OK, unlike the Higgs boson, there is no scientific reason to believe that a God does exist. But our science is still relatively primitive, and it's conceited to think we know better. Einstein theorised within the last 100 years or so. How much better will our understanding be in 100 years? A thousand years? Ten thousand years? Ten million years? All fractions of the age of the universe. I do not deign to believe that we are at the peak of our understanding of science OR god right now in our existence.
> Therefore, what precisely are we looking for? An idea?
naomi, my position is that we don't know what a supernatural God is, how we'd recognise one or even whether we're capable of it. I don't know what we're looking for! But I don't believe that you or anybody else know what we're looking for, either.
In using such loose terms in the question as "no belief" ("no" is 0%, no?), "a supernatural God" (not a god of any particular religion) and "a rational reason", you put yourself about as far from my central agnostic position as it's possible for an atheist to be ...
Now you've said "atheists do not say they are 100% sure that a supernatural god does not exist", you've moved to what I would consider a more reasonable position. I maintain that not believing in the existence of a supernatural God because you (a mere human) have seen no evidence of it is just as irrational and unreasonable to myself as a believer who insists that their God exists because their faith tells them so ...