@St_Rev All the drop was 93 to 98. That seems fishy…
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@Meaningness It's a mystery to everyone. -
@St_Rev I’d suspect a reporting/definitional change, but it’s not sharp enough. On other hand, too sharp for any natural explanation. -
@Meaningness Lots of speculations, including the phasing out of leaded gasoline (US final ban in 1996). -
@St_Rev@Meaningness Lead's a tempting explanation, but the fitting is /weird/. Would expect longer offsets than http://www.bbc.com/news/magazine-27067615 … -
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@Meaningness@gattsuru The more elaborated version of the thesis is that it's mostly determined by exposure from ages 0-4.
End of conversation
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.