At first glance, a 700-point rally on one month of softer wage data, like we had on Friday, might seem like a bit of a stretch. But markets are smarter than that. What they're really sensing is that a slowdown is setting in, one that may give the Fed pause sooner than later.  

This will be as confusing on the way down as it was on the way up, because of inflation. During the boom, inflation actually outstripped growth, but both were growing sharply. Just compare nominal (actual) GDP growth, on the left below, with real GDP growth, on the right, which subtracts out the inflation rate.