I agree that it's much wiser to approach novel materials and chemicals we employ with a 'guilty until proven innocent' approach, and that there should be much m

I agree that it's much wiser to approach novel materials and chemicals we employ with a 'guilty until proven innocent' approach, and that there should be much more stringent requirements to vet for safety. In in ideal world this would extend to generational IQ changes with increased exposure, however I doubt this is practical and would probably involve testing on monkeys instead of mice. Materials and chemicals that we've used for centuries or millennia without issue should probably go on the 'innocent until proven guilty' list, but should still be investigated. I don't think that it's necessarily wise to classify this kind of thinking as an 'aesthetic intuition', though. I simply think that the longer we've been in contact with a substance or material as a species the more we know about its safety profile, and so it's wiser to start with the relatively newer or man-made materials/chemicals.