Where did the patent term come from?

Tyler Cowen has an interesting post up, What determined the playing length of an audio CD? Turns out Sony wanted a smaller diameter CD at first, but soon settled on a 120mm diameter so that the 74 minute version of Beethoven’s Ninth Symphony (the favorite piece of a Sony VP’s wife) could fit on a single CD. Interesting story, but the 74 minute length, and corresponding physical diameter of the CD, is not really arbitrary.

Jobs report less awful, media declares “recovery is for real.”

Back in September, Bob Murphy described the “recovery” like this:

Let’s say you are running and then break a leg. You have to crawl now, but you develop that skill and are able to get from here to there. Are you in recovery from the accident? According to the NBER, yes — so long as you are crawling faster than when you first hit the ground in agony.