Oh for.... what he's talking about is one of the basics of writing 101.
- Blue doesn't show up against blue. Or in other words: have contrasts!
If you have a crazy context, have grounded, realistic characters. If you have crazy characters have a grounded, realistic setting. I mean it's why so many comedy... ANYTHING has a "straight man" (not related to sexuality) - because the serious dude makes the silliness funnier.
Get out of your own ass Bob and stop trying to sound smarter than your are. Oh and need i remind you that per your own mention, interstellar AND inception also have quiet, simple moments among some of the trippiest shit on film. So that makes them brilliant, eh?