What’s the difference between major surgery and minor surgery? I’m at a special pre-op session led by the hospital physical therapist. I had no idea. Didn’t care. Hospitals aren’t my thing. I just wanted to get this knee replacement over with without breaking stride in my full life. I know. I missed the irony at that moment, but I get it now. I get the punch line to the joke, too. Minor surgery is someone else’s. Major surgery is mine.