"g" is the way contemporary scientists think about it: https://en.wikipedia.org/wiki/G_factor_(psychometrics) https://en.wikipedia.org/wiki/G_factor_(psychometr

"g" is the way contemporary scientists think about it: https://en.wikipedia.org/wiki/G_factor_(psychometrics) https://en.wikipedia.org/wiki/G_factor_(psychometrics) I haven't read the wiki article and so can't vouch for it