It was obvious early 2015 that the FOMC would be “Decemberists”. Same this year. Now, as then, there was no real reason but they will to show they will. Nothing more.
--and everyone seems to think it's a good idea ("...markets, while on board with the December hike..."). My only hope is that "...the markets have come most of the way in adjusting to the Fed's timetable..." and we won't have another crash like the last time..