I was at a local clinic today for some elbow rehab. It’s a fascinating place, mostly frequented by elderly who pop in for treatment for the aches and pains of aging, in a communal treatment room full of benches and machines that are showing their own signs of age.

Other than a few kids with limps and bruises, many (of the older) patients seem to be regulars, which gives the place the feel of a community centre. There are lots of little chats going on in the waiting room and treatment area. “How’...