I believe that the Cavern of Time instances are the most “believable” and require the least amount of suspended disbelief.
If WoW was real (don’t laugh.. if you laugh I can’t make my point).. then when I went into Utgarde Keep first of all it should be empty because I already cleared it.. but let’s assume the mobs did a ghost run and rezz’d back at their bodies. So here they are hum-de-dum two guys standing at the entrance. The MINUTE I zoned in they should jump me. Seriously. I killed them last week.. and I’m just about to kill them again.. if they were at all smart they’d totally jump me and whip up on me before the tank got into the instance. Instead they stand there.. and stare blankly ahead.
Not so in Caverns of Time. Culling of Strat for example. Every time I go in there I’ve been transported back in time to that exact same moment. Everything that is happening is new. It’s never happened before. It totally makes sense that Meathook would do the same strategy that failed last time.. because there was no last time. Thanks to the glory that is time travel… Meathook is experiencing this for the first time. CoT is like a glorious example of Groundhog’s Day.
So I guess for our sanity we could conceive that every instance is in fact an encapuslation of time. When we step across the shimmery threshold we are in fact transported slightly back in time to the time when the “instance” was encapsulated. So even though it’s now 6 months later in real time.. for the mobs inside the instance.. this is the first time ANYONE has ever come in there.
Ok.. I can be okay with that.
I mean I’m still a little tripped up about why we get different loot each time we run it.. and I’m a smidge perplexed why quest givers outside the time encapsulation would be effected by it and keep giving the same quests.. but .. oh well.. it is just a game.