Speaking of Puzzle Theory, that's an extension/variation on the Indoctrination Theory, isn't it? Basically that the whole ending is a trap, and there's potentially more to come? Its all very interesting, but my goodness you can get some flak just by entertaining the idea from some people!
Heck, some people treat you like an actual war criminal if you picked Destroy even! It boggles my mind how people can get so antisocial over it.
Bioware themselves have said that elements of the story shouldn't be taken literally, and that they consider every idea out there to be equally valid interpretations. So I think we're all free to have our own thoughts on the matter, since they also stated they wanted people to speculate on the endings!
Personally, I hope there's more. I consider the ending to be too surreal and contradictory to be taken seriously, and there's some rather heavy symbolism going on that suggests its a Reaper trap. Potentially even an attempt to get Shepard to switch sides and take the role Saren once held - or be the conscience of a new Reaper created from Humanity.
Regardless, whatever they come up with, it should be interesting.
---------- Post added 2012-11-23 at 06:55 PM ----------