It is the classic nagging doubt that every Philly fan knows is a permanent resident deep in their gut.
It is that thing that, even when things are going right, makes you wonder how this could be.
Or, in other words, what does Danny Ainge know that the rest of us don't?
Why is the Boston G.M. willing to make a deal with the Sixers, in essence allowing them to move up from the No. 3 pick in Thursday night's NBA Draft to the No. 1 slot, thus being able to take top pick Markelle Fultz.
The deal is expected to be formally announced today, after a weekend that had Sam Hinkie-ites seriously saluting "The Process."
With Fultz in tow, the Sixers suddenly could have the underpinnings of a dynasty - at least on paper.
Too bad they still play these things on the court, which is where Joel Embiid and Ben Simmons don't seem to be able to spend that much time as they continue to nurse injuries.
Maybe their luck is about to change.
Or maybe Danny Ainge knows something the rest of us don't.