Thomas Goetz, a journalist who's responsible for the Epidemix blog, has a post on personalized medicine. The theme: waaay back in the day -- before diseases were well understood -- patients were treated on an individual basis. Goetz says the concept of personalized medicine, in a funny way, is moving us back to that kind of mentality. He predicts that the cycle will continue as individually tailored medicine becomes more large-scale with advances like the HapMap and other population-based approaches.