I haven't had anyone who doesn't agree. It seems perfectly reasonable to me that structures like Stonehead and were used to keep information. But presumably there are people who don't agree. I've got a set of 10 in my Cambridge University Press book and PhD thesis, a set of ten tests. And if I don't get nine out of 10, it goes just because some don't have cave art or astronomical alignments. If any of these cultures did not follow these same patterns all over the world, the theory would fall apart - but that has never happened yet. So what I want is all these different indicators to be in place and that consistency is everywhere.

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