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Wouldn't that metaphor suggest that there were lots of people with extremely low IQ as average lifespan figures were previously dominated by infant mortality?
by ALittleLight 7y ago
Wouldn't that metaphor suggest that there were lots of people with extremely low IQ as average lifespan figures were previously dominated by infant mortality?
- ZeroGravitas 7y agoYep, exactly. Diet, education, illness etc. all take a toll on IQ. People sometimes think you can't really change IQ via environment but that's because we've worked really hard to eliminate the things that can limit it. (Plus the Flynn point is that some of the rise is about abstract sophistication rather than actual intelligence rising, people just getting better at what IQ tests test, which would be lower too.)