As for me, I remember way back earlier in Reach forums when people were discussing the time travel theory: A theory that linked the Halo 3 legendary ending to him possibly traveling back in to planet reach during the fall.
[Edited on 10.05.2012 8:25 PM PDT]
-
I once heard people in the Reach forum saying Halo Reach would be the greatest Halo game ever, and would bring back Halo to the glory days of Halo: CE. Talk about weird.