Oh well there's a misunderstanding. Conscientiousness is the psychometric term for self-discipline (not 100% the same, but extremely close): https://en.m.wikipe

Oh well there's a misunderstanding. Conscientiousness is the psychometric term for self-discipline (not 100% the same, but extremely close): https://en.m.wikipedia.org/wiki/Conscientiousness https://en.m.wikipedia.org/wiki/Conscientiousness And I didn't bother to point out particular studies validating my claims because much of this has been known to humans for close to a 100 years. In the same vein as linking to a proof of the undecidability of the halting problem would be excess references given the nature of HN community. If you want an example study look at the "Health and longevity" section on the above linked Wikipedia page. Or to directly support my thesis about X1 and X2 separation, first look at Wikipedia IQ page and the "Social correlations" section, it's generally around 0.5: https://en.m.wikipedia.org/wiki/Intelligence_quotient https://en.m.wikipedia.org/wiki/Intelligence_quotient Or look at your own link. Second, height is correlated to about 0.29 with various measures of success: https://www.researchgate.net/profile/Daniel_Cable/publication/8545837_The_Effect_of_Physical_Height_on_Workplace_Success_and_Income_Preliminary_Test_of_a_Theoretical_Model/links/00b495390a8394aea7000000.pdf https://www.researchgate.net/profile/Daniel_Cable/publicatio...