Art historians turn drawings upside down to identify forgeries because it's easier for the brain to discern poor technique and errors when a picture is flipped over. When viewed right-side up, one's brain fills in gaps and corrects errors automatically. But viewed upside down, shortened strokes and jagged lines pop out. Looking at it from a different perspective reveals the flaws.
A long time ago, Evan and I came up with an expression, "flip that thought," to remind ourselves to question our assumptions, to force ourselves to look at whatever we were approaching from an alternative angle.
Often people associate with like minds. And while that's fun and enjoyable, I fear it makes it easy to assume the answer or solution is "right" or "good" simply because everyone's in agreement. We're all so rushed and hurried that people rarely take the time to play the devil's advocate, to argue the other side, to even ask, "are we on the right track?"
We all want to get everything done fast fast fast, but let us not rush so much that we forget to flip our thoughts, or turn our assumptions and solutions on their sides, to ensure they still hold together.