What happens in WandaVision is usually believed to be the cause of Multiverse opening, which will be explored further in Doctor Strange 2 and Spider-Man 3.
There could be more things that could have lead to the future Multiverse stories in MCU
A posted this in another forum and try again to get this topic into discussion.
Thanos' first snap could be one of the crucial things for causing the ripples between the different universes. It was a tremendous outburst of energy that changed all of our own universe, killing 50%. The natural order of things was being "f**ked with in a really bad way.
After that, two more snaps happened. We can only guess how much damage it caused to the fabric of reality.
It's not only the snaps though.
Having the six infinity stones so close to each other could be bad as well. Each of them holds a great power and when these powers meet, something is bound to happen as a side effect. Even without a snap.
And they were next to each other three times
We can also look at the history of MCU.
The dark elves wanted to throw our universe back into darkness, waited for when the nine worlds (=realms) were in alignment, used the reality stone and came close to succeed with their plan.
This can be seen as something, along with other things, that slowly came to cause the cracks between the universes. Butterfly effect, you know.
And the realms in alignment occurence was by itself powerful enough to open rifts in the three dimensional reality, and transport Jane Foster to the location of reality stone
There's also the time in Doctor Strange when a direct portal was opened between our world and Dormammu's dark dimension and its energies. Our planet was in great danger because of that.
This was the first time such a thing happened, right? I mean a portal to the dark dimension.
I'm sure it affected our universe in a way, not just only because a big city was about to be destroyed.
What about the fall of Asgard?
Maybe the old kingdom, through its very existence, made sure there was order in creation, after all. It predates even Odin so it's very possible it was an actual divine place. Then Ragnarök happened...
Odin himself was so powerful he could hold the sadistic Hela at bay with his magic. When he died, she returned with all her dark influence and her vast powers into our universe.
What if she was sent away the first time because she just being present here would have a destructive effect on our reality? Perhaps portals between alternative universes have been open before, due to her?
There have been several deaths of powerful beings in MCU: Not only Odin but also Heimdall, who's actually possessed powers that not ordinary asgardians do.
There's also The Ancient One..... and Ego, a cestial/primordial being.
What if all of them were crucial to our universe. Now that they're all gone, their living energy is no longer with us and that could alter our reality.
Perhaps the upcoming Eternals film can dive into this theory? Do you think so?
Could Multiverse also be a part of Eternals main plot?
Important things from this post:
Infinity stones together
Three snaps, energies released
Realms in alignment, causing rifts in our reality's spacial dimensions
Reality stone activated - universe nearly back in darkness.
Portal to dark dimension, its energies start devouring a major city
Ragnarök/destruction of Asgard
Powerful beings dead
Fabric of reality
Butterfly effect
