…tend to be more complex than those of the rest of us? )I’m talking about dreams while sleeping, not daydreams or aspirations.)
This question was prompted by a flick now on my TV: Wild Strawberries, in which “An old Swedish professor sees his life passing by in a series of nightmarish flashbacks.”
How much input/output do you consider to be “high”?
I assume you mean IQ types…
But dreams in and of themselves are complex. It’s the mind’s way of sorting through complexities of the day. Dream cycles typically run 5 times a night in a common 8 hour sleep cycle. The longest one being right before we wake, lending to our remembering that last dream in the early morning better than the first of the night.
IQ aside, I think people dream in the same way the world over. The context of the dreams varies like a fingerprint…This OP would be difficult to measure.
Okay, Okay, okay. IQ. 
Interesting. I never thought of the possibility that dreams occur in different cycles throughout the night. They always just seem like one long dream to me. In fact, even if I did remember all my dreams for a given night, the idea that I would be able to remember where one ended and the next began seems impossible.