The jarring, fill-in-the-blank finale, concluding a show widely hailed as America's greatest television drama, sparked a furious debate about whether Chase had conceived of an actual ending and whether he left the audience any clues.
The biggest hint, according to a consensus taking shape on the Web, is a scene from an earlier episode in which Tony and his brother-in-law, Bobby Bacala, muse about what it feels like to die.
'At the end, you probably don't hear anything, everything just goes black,' Bobby says while they sit fishing in a small boat on a lake.
'I think that is one of the most legitimate things to look at,' Schaffer said when asked about theories that the flashback was meant to foreshadow Tony's death.
That's pretty much my story, and I'm sticking to it.