[Phil153]

This is an excellent point that invalidates some of the points made in the other thread - namely, the one about geniuses in the 1600s made by Mendacious.

I'd agree with the Y-truth correlation on the stipulation that the subject matter required to form the opinion is broadly understandable and available to all and not highly esoteric. It may also need to be limited to a single culture/country. I can think of some limited domains of knowledge where the smartest experts can get it wrong for reasons of groupthink or similar, where the gut feelings of the less intelligent are more likely to be correct. But that's certainly not the case for religion, evolution, political theories, social theories and so on.