[bonki]

I don't want this to sound derogatory but my experience is that simpler minds are generally happier in life, and I'd guess that this often (not always) comes with an inability to multitask, so I believe you are right. I had a friend in school (great dude, very grounded and happy person) who couldn't eat ice cream and walk at the same time (I swear I'm not making this up).

[contrarian1234]

I've found the exact opposite. More intelligent people can't multitask. But they generally can think about things more deeply. People that can multitask literally are constantly thinking about several things at the same time.

[bonki]

I don't find these to be mutually exclusive concepts.