it’s probably just an artifact of religion vs. wealth correlations.
If religion is negatively correlated to wealth, then presumably one would attach some likelihood to increasing wealth leading to decreased religious belief. We all take cognitive enhancers causing us to get richer, then we all stop believing in silly things, like God. This still results in increased IQ leading to truer beliefs.
This is a good old causation/correlation debate; but it seems to me that without further evidence we should take the IQ/religiosity study as weak evidence in favour of the hypothesis that IQ causes non-religiosity, possibly mediated by wealth:
If religion is negatively correlated to wealth, then presumably one would attach some likelihood to increasing wealth leading to decreased religious belief. We all take cognitive enhancers causing us to get richer, then we all stop believing in silly things, like God. This still results in increased IQ leading to truer beliefs.
This is a good old causation/correlation debate; but it seems to me that without further evidence we should take the IQ/religiosity study as weak evidence in favour of the hypothesis that IQ causes non-religiosity, possibly mediated by wealth:
high-IQ -----> non-religiosity
high-IQ -----> high-Wealth ------> non-religiosity