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I doubt you can do a clean comparison, likely too many confounding factors, at least to pull anything out easily.



If someone thinks they can figure out 1500 years from now if the 'fall of the west' was because of fluoride, it's probably easier to look at the countries in the west that do and don't use it now.


that’s the joke, today we are like “huh… lead in water, IQ, fall of Rome!” and that was more than 1500 years ago I think




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