system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are higher levels of intelligence in humans associated with lack of emotion?

Edit: A lot of people started getting angry about the "unsubstantiated claims" in this question - if there is no correlative/causal relationship between the two, i am sorry for my premise is wrong. The reason why this question was asked was the fact that in various aspects of our culture highly intelligent people are portrayed as emotionless or in a way which implies that they do not know how to deal with emotion. Again, i am not "claiming" anything. As this is a very difficult question with numerous factors at play, i thank everyone for their answers - whether they are right or wrong.
gpt
This perception likely derives from the fact that when you consider a person 'emotional', it's almost certainly because they have poor impulse control.

If someone is constantly flying off the handle, weeping over trivial slights, etc., then they're probably not able to maintain the kind of focus necessary to educate themselves and make decent life decisions.

It's not that intelligent people don't have emotions.  It's just that they don't let those emotions interfere with their lives in a negative way.

Note also that the opposite - true lack of emotions - can be a significant hindrance as well.  People who lack certain emotional responses can be socially isolated because the presumption 'everyone feels like X' simply don't apply to them - and this makes their actions seem curious or even insulting to others.  Emotions also drive us, so a lack of certain emotions can steal motivation.  You may hate the anxiety you feel, but you've probably never considered how much it drives you to succeed.