Such deductions, over a long period of time are also behind some spiritual beliefs and morality, including gay sex.<quoted text>
I haven't got a clue why they would think so. Why did Christianity develop along the lines of worshiping one human sacrifice and a virgin birth? No idea. Culture is like that. People pick up on some idea and it becomes relevant to them.
The thing about low tech cultures is that they aren't stupid, Dave. The worm thing isn't any kind of science going on - these are just people who are constantly infected with parasitic worms. There's no getting away from infection, unless you have good sewers and pavement. So they have myths and magic that deal with worms. But people in low-tech cultures make deductive observations, too. They've come up with all kinds of medicines for ailments. The Luo actually have de-worming medication they make from herbs to control the worm population in their bodies. Unlike our medicine, though, theirs won't clear the body of parasites. They act to decrease the parasites rather than destroy them all.
Told you it would be used against you.
The idea behind the Christian virgin birth and sacrifice was God realized it was to big for us to see. Therefore it melded with us, imparting part of itself directly within human form that then had to deal with the physical world. God went slumming. This gave a face to the message it had been trying to pass on, but was too big and vague for mankind to see. God set man loose way back, and this was the way he tried to call some back home. Reuniting with the creative spirit.