https://www.pnas.org/doi/full/10.1073/pnas.1506451112
Seems like numbers are small. (Sowell acknowledges as much in the end note but argues that it may still be consequential in the tails where a bunch of the dramatic evidence for first born comes from.)
Scotts were considered the poorest and the least literate. It was said that no Scottish Baron could write his own name. ... To Adam Smith, Hume, etc.
Japanese ...