Another front page thread tonight has multiple people saying it's 0.4 hereditary at childhood, rising to 0.75 by adulthood. Height is 0.8. I take those numbers

Another front page thread tonight has multiple people saying it's 0.4 hereditary at childhood, rising to 0.75 by adulthood. Height is 0.8. I take those numbers with healthy skepticism, having not read the source material, but they aren't out of thin air.