Today I found myself saying "through the retrospectoscope" to a non-medical person. The retrospectoscope is a poke at the tendency of doctors to rely on medical devices (ultrasounds, Cat scans, etc) to make diagnoses while jabbing at someone with 20/20 hindsight. We could just say, "in hindsight" like the rest of the population, so when I used it, I started to explain myself, but the person I was speaking to (a businesswoman) understood perfectly what I meant.
I'd like to know when the word retrospectoscope was first used and if it has passed into the understanding if not usage of non-medical people today. It's not on Etymology Online, but is in the Urban Dictionary, and I've seen it in the New York Times, and it's in Sheehy's Hillary's Choice:
Looking back through the retrospectoscope from 1999 to 1992, Davis sees a tragic pattern: “One can speculate that the whole chain of events that led to the Whitewater investigation, then led to Ken Starr, which then led to the investigation of Monica and finally to impeachment can be traced back to the first Jeff Gerth New York Times....