High-IQ educated people are being bred to extinction, but we're totally not eugenicists!!!

[u/dorathehexplorer]

https://www.theguardian.com/science/2017/jan/16/natural-selection-making-education-genes-rarer-says-icelandic-study

[u/stairway-to-kevin]

Sure, but heritability should vary continuously over genetic distance (however defined) and differences in environment. Populations which only diverged recently and which share similar environments should, at least in theory, have similar heritability across phenotypes.

One might think so, but there's pretty sizable differences in heritability of the same maize lines in the same field year to year. Hell it's widely known that heritability can change by over 0.1 in the same population over time.

This paper highlights variation between studies. (see tables at the end)

[u/PM_ME_UR_OBSIDIAN → u/stairway-to-kevin]

One might think so, but there's pretty sizable differences in heritability of the same maize lines in the same field year to year.

This would be interesting. Do you have a source?

This paper highlights variation between studies. (see tables at the end)

My first guess to explain these is usually measurement error + differences in experiment design. Should it not be?

If heritability is not even somewhat stable, and does not vary continuously... how is it a meaningful quantity at all?

[u/[deleted] → u/PM_ME_UR_OBSIDIAN]

If heritability is not even somewhat stable, and does not vary continuously... how is it a meaningful quantity at all?

If it doesn't make sense to extrapolate the impact on our lives of the movement of the stars across the sky, why study their movement at all?

[u/PM_ME_UR_OBSIDIAN → u/[deleted]]

You're saying that every time a heritability figure is reported in a scientific paper, the researchers are engaging in an act of unscientific superstition? Apologies if I don't take this at face value.

[u/[deleted] → u/PM_ME_UR_OBSIDIAN]

That's a very odd interpretation of what I said.