This is a very random post, sorry! It's not directly connected to this thread, but thought I'd post it here anyway, as the idea of religion has been mentioned a few times. I've been looking into whether there is a correlation between IQ and religiosity (i.e. whether a person believes in God, and which religion they align themselves with) and wealth and religiosity.
Apparently, when looking at the Western World, there are negative correlations in both cases - in other words, broadly speaking, a person with a higher IQ is less likely to believe in God than a person with a lower IQ, and a person with a higher than average level of wealth is less likely to believe in God than a person with a lower income. In the case of wealth the correlation isn't that strong, but nevertheless it's significant.
In terms of intelligence level, I guess this would make sense - someone with a higher IQ is perhaps more likely to question the existence of a 'supreme being'. In terms of wealth - well, I'm guessing there's a link between income and intelligence, so that would make sense too. I also wonder if, generally speaking, a person who is strongly religious is more likely to have moral objections about some of the aggressive techniques used to get ahead in a capitalist society? Maybe I'm being to presumptuous there, though.
On a worldwide level, communist countries where atheism is compulsory mess up the figures, as income levels are generally low too!
So there we are, that's my random post over with.