I don't know why you believe the purpose of medical school is to predict how good a doctor is at surgery. Most doctors aren't going to be surgeons. I've never

I don't know why you believe the purpose of medical school is to predict how good a doctor is at surgery. Most doctors aren't going to be surgeons. I've never been to med school but my understanding is you learn how to be a doctor in residency, where there are no grades. Medical school gives you theoretical knowledge but not the practical knowledge you need to actually do the work.