system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] So what's the deal with the fake infinity gauntlet/timeline of invasion of Nidavellir?

So in the first Thor (2011) we see the Infinity Gauntlet in Odins treasure room.  At the end of Age of Ultron (2015) Thanos grabs his gauntlet and says he'll do it himself.  Then in Thor Ragnarok Hela,imprisoned for a millennia, tells us its a fake.  In Avengers: Infinity war we learn Eitri forged Thanos's Gauntlet after they were invaded and the dwarves have been all but extinct since. 

But Hela saying it's fake implies that there is a GENUINE one.  And has been for at least a millennia for Hela to know it was fake like that.

So did Nidavellir get invaded by Thanos a thousand years ago and nobody noticed?  But Odin somehow then learned about the plans and designs for a sweet gauntlet and had a replica ordered up to commemorate the slaughter of an entire race he was sworn to protect?  Or.....what?
gpt
No.  The one in the treasure vault is a fake - we just don't know how Hela knows it - likely she knows that Odin knows.  There already is a mold in Nidavellir, but we don't know if that's related to the fake.  That doesn't imply she knows there is a real one.  That could have been commissioned by anyone.

The one that Thanos grabs from his vault is the one that he had made from invading Nidavellir.  It takes place a few months before Ragnorock because during that Time Thor has been unsuccessfully finding Infinity stones.  That's when the realms fell under further disarray.


The scenes are not in order chronologically.  Its somewhat confusing since the gauntlet was not meant to be in Odin's vault - Thor's original director had no idea that they were going to use it later down the line with Infinity stones.  Thus, Hela knows its a fake.  We don't know how she knows, but she already sees Odin as being a fake anyhow.