I imagine that the most likely case is doctors watching how other doctors do it, perhaps to see if there's a small change to reduce scarring or something. Or ma

I imagine that the most likely case is doctors watching how other doctors do it, perhaps to see if there's a small change to reduce scarring or something. Or maybe it's just been awhile since they did that specific surgery and they wanted to make sure they hadn't forgotten something. When I go to a doctor, I'm not paying them to know everything off the top of their head, I'm paying them because they know what to look for and where to look. Likewise, I don't get paid as a developer because I know everything, I get paid because I can deliver results, and sometimes that involves some research. I am 100% ok with surgeons watching YouTube surgery videos, especially for less common operations. In fact, I expect them to rewatch something before doing a surgery they haven't done in a while.