What does it mean to be "Locked out of time" (Destiny)

by General Vagueness , The Vault of Sass, Saturday, April 11, 2015, 17:35 (3320 days ago) @ Durandal

The Vex "Locked the Black Garden out of time". The Gatelords purpose is to manage the Vex teleportation network and guard the realms the Vex "lock out" of time.

But what does that really mean? When you free the Black Garden from the grip of the Vex and the Heart of Darkness all that seems to happen is that the lights turn on and Ghost can communicate again with the tower. It doesn't seem very special.

Likewise Golden Age humanity built a college practically on top of the entrance to the Vault of Glass and the Endless Steps, two major Vex installations. Why didn't they ever enter either? Surely the Vault Door is easy enough to break open given sufficient fire power. If the normal Vex computronium can be shattered by geologic events then some heavy explosives should do in a pinch. Is the Vault also locked out of time?

If any place is locked out of time, I would think the Vault of Glass is. Also who's to say just getting through the door lets you get in? If it is locked away in some special way, I would think you'd need to create a connection of some kind.

If you imagine a 2D graph, with the x axis as position, and the y axis as time, a 45 degree cone contains all the possible locations an object can have and not exceed the speed of light.

However, as you enter regions of increased gravity, the cone starts to tilt due to the distortion in the shape of space. With enough distortions it is possible to have a cone tilted such that an object can move down the y axis, and thus backwards in time.

You could also manipulate things such that a point in space could not be reached, because every attempt would land you back where you started. imagine instead of a series of cones looping back to move in time, they form an S curve. Thus no matter how fast an object moved, it could never reach the point concealed in the S, instead always under or over shooting it.

Thus without the Gatelord's codes, you could never reach the Black Garden because you could not physically move to it. It is the ultimate security. The Vex can then access the locked region via a wormhole/portal without worrying about someone else happening along.

This is interesting, and it felt like a mis-application of theory, but there's FTL travel and a bunch of other incredible things in Destiny's universe, so maybe that is possible.
Of course, it could all be a matter of taking things wrong. When the Ghost mentions it he says "that can't be right", which could just be disbelief at the possibility, but maybe the translation or interpretation is questionable, or maybe it's not what it sounds like, or maybe it's just a theory that got put down as fact.

In Destiny, is it a many worlds interpretation or a singular universe? The vault likes to use many phrases like "times ocean" and tapestry, that indicate that there are multiple universes like the Sliders TV show. The Future War Cult also has a machine that allows people to view multiple different futures.

Yet the Exo Stranger cards seem to indicate that there is one time line that she keeps looping through. One set of events over and over and over again. How can the Vex Oracles and Medusa "edit" you out of existence if they just keep making an alternate timeline?

I didn't take the Stranger's card(s?) as referring to a time loop, just her doing the same thing over and over, looking for something, or (maybe more likely) reliving a memory.