He literally says that he is going to return 400 years into the past to correct what will happen.
Granted, I agree with the idea of a reset if we accept that, but here he literally explains that he will only reset the entirety of the events that occurred over the last 400 years and that he will correct his mistakes from when he was not immortal.
As a result, he is literally admitting a contradiction with a Low 2-C rating, and thus the only possible interpretation is that he does not affect all the (instances) that make up the space-time continuum, but rather specific instances that already occurred at given moments in (time). This implies that he only affected three-dimensional space.
Additionally, I would like to remind that he is completely explicit regarding his statement. I also want to clarify that the universe page clearly explains that four-dimensional space encompasses the entirety of three-dimensional space.
This further reinforces the idea that Zeref does not deserve a Low 2-C rating based on this.
Firstly, it is significant to understand that a universe, including space-time continuums and timelines, encompasses all three-dimensional space that can be accessed through regular movement within the universe. This means that any location that can be theoretically reached through conventional means of travel, such as spaceflight, would be considered part of the same universe and timeline, regardless of how the fiction portrays it. Movement between universes should only be feasible through extraordinary modes of transportation, such as portals, higher-dimensional movement, or teleportation. By default, it is assumed that universes have separate three-dimensional spaces, but if a piece of fiction demonstrates otherwise, destruction of several connected timelines would be rated as Low 2-C (Universe level+).
The Universe is all of space and time and their contents, including planets, stars, galaxies, all forms of matter and energy. Due to the unknown spatial size of the universe, we use the size of the observable universe as a baseline for universal feats. The observable universe is currently...
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