>One of the fist things they tell you in medical school is that by the time you graduate everything you've learned will be obsolete. Some doctors stay up on things and learn new stuff -- some do not. That is one primary thing I look for in a doctor.

They said the same thing to programmers... and it turned out to be quite false. Things just came into fashion and dropped out of it, or old wine came in new bottles, but pretty much since mid nineties I think we had perhaps a dozen really new things to learn, and a dozen to forget.

As for medicine, they're fixing the same model for a few millennia. We at least get new motherboards and processors every few years.