However sometimes "existential planes" can be a synonym for actual dimensions.

I meant like would existential planes also have different physics to them?

(also dimensions Are kind of used as a placeholder for universe or segment of reality, but I’m pretty sure that’s not what you mean.)

Perhaps higher dimensions could have different physics even to higher dimensional planes, unless if by existential planes and dimensions you mean the same things.

Both would have the qualities of being "more real than reality".

(That id why I tried to seperate actual dimensions from universes and pocket universes. Most higher actual dimensions reach and even go beyond multiversal scale. However I tend to dislike characters of too high dimensions because their creators essentially claim things over other works)

@Satanbrony

I mean like realms such as the Astral Plane, the Mental Plane, the Buddhaic Plane, Etc.

Oh then those are absolutely below higher dimensions. They are not the same thing. Hells/Heavens (Death realms if you like) are not higher dimensional. So yes, this includes all soul realms and etc. Dreams, thoughts etc are also not higher dimensional.

But do you think those planes would have slightly different physics?

Then somewhat yes, because they are all less directly physical. They shouldn't be phased by most of our physics.

Yes, they should be able to have slightly slightly different physics that would be almost incomprehensible for our ways to understand.

At least very difficult for us to understand as they would mostly exist without our physics.

The full extend of such things should be a good source for paranormal, as it means a definite exitence of things beyond usual physics.

That is an interesting point, thank you for your opinion. I just kind a wish I could’ve gotten to the point faster!

@Satanbrony @JokuSSJ @Rkv0 do you think this should be a power called Esoteric Physics (which would manipulate the Alien Physics that could explain most supernatural/paranormal anomolies such as Cataphysical Energies that power Magic/Psionics or the biology of mythical beings such as spirits, monsters, fairies, dragons, elves, dwarfs, Gods (Minor Cosmic Entities), etc. how the Fantasy world looks and works (potentially an explanation to flat world), how magic works, what the true nature of the Existential Planes is like, how’s the afterlife works?)

Or do you think that Supernatural Law, Fictional Physics or Metaphysics would actually be what I’m suggesting?