Not a serious lore/theory discussion thread to post some wacky Destiny conspiracy theories such as “Zavala and Ikora keeping the Hunter vanguard vacant so they can prop up Shaw Hawn as a Hunter figurehead” etc etc
All timelines exists simultaneously. Failed or otherwise. Past or future.
"The Guardian" has no origin point, being reborn at different points in time being a veteran or new light. Regardless, the varying dialogue, the alternate dialogue in strikes, campaign missions etc. are all reiterarions of the same thing.
The game is being played in reverse. New Lights were reborn first, then Veterans from D1 were reborn second.
The infinite branches of variance all narrow to a line atop the back of the Ouroboros.
There is no going back in time. Only stepping from side to side.
Ghosts are able to pull the Guardian's resonace pattern they're familiar with from the neighboring timelines.