I feel like I understand what you’re going for with Zachary a little more, and I think it’s pretty cool—someone who has absolute power but goes some place beside (and not above) himself where he can’t be absolutely powerful and can figure himself out. Doing that with Planes sounds like it would be purer to the intention you have for your story.
It’s just that, to do that using Planes, although it might work for your idea, would require a lot of overengineering. Like, not a bit of overengineering, but a lot a lot
. The World suggested it because he’s the one who came up with it 8 years—it’s at the forefront of his mind, in that sense.
But we work ideas, big and small, into MR organically, as we have for the last several years. Over time, I am sure we would naturally build up to a full theoretical understanding of other planes (only the idea of which we currently have). But they just aren’t anywhere near the stories we have right now. It would be untenable to make that jump now. It’s the kind of thing that we have to hash out, slow and steady.
As a group we have been going back and forth on this issue and can’t really come to a complete decision as a group on what would be best for MR itself. But our consensus is leaning against using Planes for the reasons stated above.