If that's all you've got, then you totally made the idea up.
What would a citation for it look like?
Why would a bunch of atheists be positively inclined towards a story that resembled something they rejected more or less directly?
I don't know, maybe because they were raised in highly religious families (Hanson and Muehlhauser in particular, Yudkowsky mentions an Ortodox Jewish upbringing but I don't know how much religious his parents were, I don't know about the other folks) and they are scared that they realized they live in a world "Beyond the Reach of God"?
Anyway, we don't have to psychoanalyze them. Similarity of beliefs and familiarity with the hypothetical source is evidence of relatedness.
I didn't exactly have to probe deeply, and considering that the philosophical effect of the belief is diametrically opposite, I certainly don't think I went too deeply. It feels shoehorned in to me.
You could compare different Christian denominations and find different "philosophical effect of the belief" (e.g. the five "Solae" of early Protestantism vs Catholic theology), but this doesn't mean that they are unrelated.
I don't know if this is a relevant data point, but I was raised in an atheist communist family, and I still like the idea that people could live forever (or at least much longer than today) and I think the world could be significantly improved.
It seems to me one doesn't need a religious background for this, only to overcome some learned helplessness and status-quo fatalism. Okay, the religion (and also communism) already provide you a story of a radical change in the future, so they kinda open the door... but I think that living in the 20th/21st century and watching the world around you change dramatically should allow one to extrapolate even if they wouldn't hear such ideas before.
I'm giving a talk to the Boulder Future Salon in Boulder, Colorado in a few weeks on the Intelligence Explosion hypothesis. I've given it once before in Korea but I think the crowd I'm addressing will be more savvy than the last one (many of them have met Eliezer personally). It could end up being important, so I was wondering if anyone considers themselves especially capable of playing Devil's Advocate so I could shape up a bit before my talk? I'd like there to be no real surprises.
I'd be up for just messaging back and forth or skyping, whatever is convenient.