Several responders have brought up the Flynn Effect. It's relevant. As a sign of how far the Western ruling class has gone down the rabbit hole, though, note

Several responders have brought up the Flynn Effect. It's relevant. As a sign of how far the Western ruling class has gone down the rabbit hole, though, note that Flynn's own take on the broader context is now beyond the pale: https://quillette.com/2019/09/24/my-book-defending-free-speech-has-been-banned/ https://quillette.com/2019/09/24/my-book-defending-free-spee... .