He talked about how he thought that supposedly objective IQ tests were generally a series of gates designed by people already considered intelligent to keep themselves in power, and that they totally disregarded huge swaths of indispensable human knowledge and talent.
Modern psychology supports this, too. IQ tests are bullshit, and intelligence is not something that can be reasonably quantified in any meaningful sense without an insane amount of asterisks.
Also…are we counting kids? Because you’d probably find kids are consistently beneath the 50% line on any generic intelligence measuring criteria someone makes up.