It's incredible. I love the way he just casually drops in the other guys time as well. Amazing the things the brain is capable of.
When I was younger, there was a boy with what we would now diagnose as ASD, He struggled with a lot of social norms in school and became very isolated.
But I remember clear as day, his ability to get a completed 500+ piece jigsaw, turn it upside down, throw it into a mass of pieces and perfectly reassemble it.
How the fluff' he could track their movement and recognise their shape etc., when all he could see was the brown reverse still baffles my mind.
He went on to do physics to a high-level, which didn't surprise me in the slightest.