After shoulder surgery, I was sent to a physical therapist.

In forty minutes, he showed me a dozen exercises: what to pull, how to hold it, what to move. I nodded carefully and pretended to understand everything.

Then I was given a sheet of exercises and went home. At home, it turned out that I had understood nothing and forgotten the rest.

The sheet said things like “move the shoulder blade back and down”, “rotate the lower angle up and out”, and “do not flare the ribs”. Each word made sense on its own. Together, they were nonsense.

Fortunately, I am a programmer. So Claude Code got the sheet. It found the sources and built a rotatable skeleton, step-by-step instructions, and an explanation of the tricky parts for every exercise.

I suspect rehabilitation handouts will look something like this in the near future: a live artifact with animated 3D skeletons like https://plecho.poke-method.work/en sources https://github.com/istarkov/pt

PS: It’s by no means a substitute for a real doctor, but it’s incredibly helpful for fully understanding what needs to be done and how to do it.