> IQ remains relatively stable through life: that’s what makes it a good measure of general intelligence, when tested appropriately. This is pointless if IQ te

> IQ remains relatively stable through life: that’s what makes it a good measure of general intelligence, when tested appropriately. This is pointless if IQ tests can be gamed. It's like those leetcode tests. Smart folk can pass them. But so can anyone that practices for them or anything adjacent to them. Thus you don't need to be smart to pass the leetcode tests, just have enough time and resources to practice them over and over until you pass. And thus, it becomes a proxy for people who have the will and resources to practice enough till they pass.