If he even knows what he is signing....
He's drawing squiggles on the pretty paper ... Look what I did at work today mommy!
I actually feel bad for him. Having watched many older relatives lose their minds it really is very sad. More so when they know they are losing them.
I do hold Biden up as a model. A model of how I do NOT want to be seen in public walking. I think PTs call it stair-stepping or bicycling. I'll check this week when I go for my left knee PT.