I agree. I was deliberately pushing the lack of evidence as far as I could in order to make the point as strongly as I could. In my imagined scenario (someone perfectly framed of a crime who nevertheless knows perfectly well that he is innocent - though has absolutely no evidence to lean on), I find it completely realistic to be such a person and to have a strong conviction in my own innocence even though there is not a scrap of evidence for it and a lot of evidence against it. This, I think, may provide a basis for trying to imagine what it is like to have a strong belief in a religion despite no evidence, even in the face of contrary evidence. As you say, the religious actually do have certain kinds of evidence.

I think it's worthwhile to, if it is possible, try to understand people sympathetically, to try to understand them from the inside. I think that the ease of imagining myself as a perfectly framed person who remains firmly convinced of his own innocence in the face of zero evidence for and plenty against suggests that the difference between believers and nonbelievers is not as deep as it might have seemed. There is, necessarily, some difference, but I don't think it's a matter of the brain functioning drastically differently.