I had an amazing moment tonight with Isaac as we were lying in bed:
He asked "what's a frown upside down?" I answered "A smile!" He asked "What's a SMILE upside down?" I answered "a frown". He then asked "What's a frown halfway to a smile?"
I thought and said, "I think it's just a straight line mouth"
He said "No... it's a moon".
And what hit me about this is that as we were talking about this whole smiles thing, we had a fundamentally different IDEA of how that smile was turning upside down: I saw it like a line bent upwards, straighening, then bending downwards. He saw it as a fixed crescent, that rotates to turn upside down, so if you stop halfway, it's a moon.
What it told me was that sometimes you can agree on a starting point, and an ending point, but have a completely different way of getting from A to B: If Isaac hadn't asked me about the "half way", I'd never have known we weren't thinking of the same thing...
I know it's really a minor thing, but it really took me aback in a good way and gave me some insight into how people brains work differently, and how important it is to understand the process.