
I am torn between pocket dimension and wormhole because I think it’s a mix of both. I am 98% sure that the upside down is the bridge between the real world and dimension X. My theory is the mind flayer is building a tesseract in the upside down to unify the real world to dimension X which would cause the barriers to fully collapse and allow it to completely take over the real world.
What’s troubling me is the significance to Nov 6. We know that when el sent Henry to dimension X, she didn’t send him to the upside down because we see him falling through dimension X where he takes on the Vecna persona. Also El didn’t send Henry to dimension X on Nov 6. Nov 6 must relate to Henry in some way also based on the flyer max finds in his mind scape for the play. But the confusing part to me is that Vecna is controlled by the mindflayer, so what importance would Nov 6 have on the (1/2
No I get that, but why would that have anything to do with him taking will on Nov 6 many years later and the upside down being stuck on that day. I just don’t know how to connect the day Henry let the mind flayers take completely control over him and the day will disappeared together and why the mind flayer/vecna is so fixated on everything happening THAT day