In her book Little Soldiers, journalist Lenora Chu tells about a university professor in China who asks his students to put a paper bag over their heads and then gives them a minute to take off one object that they don’t need. The students take off all sorts of objects: eyeglasses, jewelry, shoes, etc. Almost none of them do the very first thing that occurred to me when I read about the experiment: take off the paper bag.
After conducting this experiment on thousands of students, the professor says that only three out of a hundred Chinese students respond to the prompt by removing the paper bag.
IQ is important, but other things vastly outweigh its importance.