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A comment on IQ is largely a pseudoscientific swindle (2019). Parent comment

Re:IQ is largely a pseudoscientific swindle (2019) by catalogia on Thursday May 07, 2020 @11:23AM (#23104050)
FYI most avgas is still leaded, to this day. This is because many airplane engines are designed to operate at very high compression ratios, requiring high octane fuel. The lead additive boosts the octane rating of the fuel.
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Re:IQ is largely a pseudoscientific swindle (2019) by pavlov on Thursday May 07, 2020 @11:42AM (#23104282)
That's in the spirit of the analogy. Lead additive has a special niche purpose. Similarly IQ could be useful for measuring a specific narrow combination of skills and cultural background. (The first step towards rehabilitating "IQ" should be to rename it, though.)

Lead everywhere is as toxic as assuming IQ measures some kind of general intelligence.

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