Not sure how a witch's creation magic is different from elemental energy (or fundamental primitive energy in general; Genshin's UES) going by how the evidence was presented here. It doesn't seem to be an actual counter to it, other than showing techniques saying magic is used blah blah blah this and that; it didn't say it had no correlation to elemental energy. Nilou cannot use her vision in the Imaginarium Threatre because it was said that
she doesn't know magic and can't use it.
It is a different case with Wanderer since he can use his vision in the Imagarium Threatre because he wields a catalyst and therefore knows magic. That detail is more of a knowledge on magic type of thing to satisfy the property of the world, doesn't really debunk how it isn't connected to the UES.
The catalyst serves to concentrate elemental energy, and some teach how to use it, using elemental energy in the catalyst does not make it a different type of elemental energy/magic from the others, and the elemental energy still comes from the person/vision, and not of the catalyst.
Even if you were right, it doesn't change the fact that a person who the world leaves unable to use elemental energy/sight was able to use the witches' creation magic, making it obvious that there is no use of elemental energy other than her own saying that "magic is in words" and mentioning "the magic of this world" several times, making it clear that it is a magic different from that of the real world.
The room the book was in was said to be created with Witch Creation magic, which isn't part of the real world. But eh, we saw it on a random table in Mondstadt anyway. However, it begs the question that there are 2 copies of the book which you can access the world. And when you access the Imagarium Threatre from either book that is in Monsdadt or the room, you end up in the same Imagarium Threatre. Of course, that brings an issue towards the claim that the world is something inside a book, because if it is strictly inside a book then it can only be embedded upon one copy and can only be accessed through one copy. It creates suspicion and makes your line of reasoning unstable; the world cannot exist in 2 places at once. However, with the book acting as a portal to access the world would be a better interpretation.
Even if there were more than one book that leads to the Imaginarium Theater, that is not contradictory to what I said or to any kind of argument, since I have never stated that there can only be one book that leads to the Imaginarium Theater, in addition there is only one book for the adventures (in which you can see
the player entering all the acts interacting with the book).
Yeah, sure, whatever you do in the realm can be inscribed and written into the book. Or Wolfy himself can just write stories based on your adventures in the Imagarium Theatre. I can see the link between the realm and the book now, but saying that the realm is a "fictional world" inside the book based on that alone is rather a slippery slope, especially since there are arguments that go against the belief, such that the world able to be accessed through 2 copies as well as said to be "A World Within the Patining", not a "World Within the Book".
It can be considered a world within if a painting does not contradict the arguments, and there are not 2 copies of the book (even if there were, it does not contradict anything), as you can
see in the gameplays, people continue to
enter the same book that is above of the table.
When did Paimon say something like "first world in books"? And if it is literal then why was the term "World Within of Painting" capitalised? It's obviously meant to be a title for the Imagarium Threatre.
I mean, even if you prove that the painting part is just a title, that still has nothing to do with the world being inside a book, which is already pretty obvious.
Like I said before. If it is strictly a dimension embedded within the book, then it can only exist in that copy because it is inside of it. The world cannot exist at multiple objects at once unless you argue for parallel dimensions which isn't the case, or you claim that the books are painting are portals to it instead.
I think you're forgetting that there are 10 acts and 3 different worlds (the worlds are separated by the acts of the book, from act 1 to act 3 is one world, from 4 to 6 is another world, from act 7 to 10 is another world), in addition to there not being a single world, which refutes your point, there is the fact that the Traveler enters all the worlds by interacting with the same/unique book.