> How many people change their IQ? Literally all of them. However, if someone never progresses to "senior" they might've just lost interest in software develop

> How many people change their IQ? Literally all of them. However, if someone never progresses to "senior" they might've just lost interest in software development. People in general are remarkable at learning about subjects arousing their curiosity. This is an important fact, too, because environments can be designed specifically to foster just that. Not everything will be working for everybody, of course, and some might never develop an interest in that field again. But that's okay, too.