Genetics vs Environment

Commenters debate the roles of genetic heritability versus environmental factors in determining human traits like intelligence or IQ, often citing studies on heritability, twin/adoption research, and criticizing omissions of genetic components in articles.

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Keywords

IQ pubmed.ncbi IMO spectrumnews.org GREML WGS FWIW substack.com virginia.edu NOT genetic genetics environmental gene traits component studies genes factors differences

Sample Comments

jjtheblunt Mar 23, 2022 View on HN

how do they know it's genetic and not environmental?

SamReidHughes Jun 7, 2018 View on HN

Actually it's more genetic than the environment.

golemotron Apr 28, 2015 View on HN

Why doesn't the article mention genetics as a possible factor?

b_e_n_t_o_n Nov 10, 2025 View on HN

Definitely a genetic component as well!

There are genetic factors!

pgt Jan 25, 2022 View on HN

There’s a genetic component - don’t remember which gene, but only some are subject to its effects.

Simon_says Jul 16, 2017 View on HN

That doesn't account for the genetic component.

toasterlovin Feb 23, 2018 View on HN

FWIW, your observation is not controlling for the contribution of genetics.

doliveira Jun 14, 2022 View on HN

There's a reason why they're not just saying "it's genetics"...

tptacek May 11, 2023 View on HN

Heritability does not mean "genetically determined".