I think it basically goes like this:
0-40 IQ: Emotion is meaningless. Below a certain threshold you're more like an iguana than a person. Might be happy, but we'd never know.
40-70 IQ: Bliss. As long as their basic needs are met, they're happy because they don't know about the things that make the rest of us unhappy. They're basically dogs.
71-90 IQ: Nonstop impotent rage. They're perpetually angry because they're stupid as fuck but just smart enough to realize they're inferior. Antifa, hillbillies, BLM, biker gangs, etc.
91-110 IQ: Ennui. They're cogs in the great machine, they know it, and they can't help it. Mostly happy, but rarely fulfilled. The average low grade office worker, most blue collar workers.
111-125 IQ: The sweet spot. Smart enough to do whatever they want, smart enough to change the world in a small but meaningful way, smart enough to really appreciate things. But not
too smart. Managers, doctors, engineers, etc.
126-150 IQ: Rapidly alternating between existential angst and lamenting the futility of trying to matter in a world where no one matters. Generally results in some form of coping mechanism, whether a superiority complex, God complex, solipsism, whatever. Tend to either self destruct into barely functional tormented genius types or end up sociopathic billionaires if they can fight off the depression.
151+ IQ: Too busy playing Minecraft to be sad
