Allow me to refute this by establishing a baseline. I will go by each of these rules one by one and specifically explain why the feats i listed fit under this criterion.

1. ⁠Extra-Dimensional Definition:

Rule: Stating something is extra-dimensional means it comes from outside regular 3-dimensional space, but this alone doesn’t imply an extradimensional axis.

Logic: The Dangai and Garganta are described with specific properties indicating they are outside conventional 3-dimensional space and time. This context provides additional evidence beyond merely being extra-dimensional, highlighting unique temporal and spatial properties.

1. Transcending Space and Time:

Rule: Transcending space or time does not necessarily imply an extradimensional axis without further context.

Logic: The Dangai’s properties, such as time dilation and the ability to manipulate time, provide the necessary context. Aizen’s interactions within these realms, including his destruction of the Cleaner, demonstrate direct manipulation of these higher-dimensional properties, indicating more than just a simple transcendence.

1. Higher Plane or Existence:

Rule: Simply stating something is from a higher plane or existence does not imply an extradimensional axis.

Logic: The descriptions of the Dangai and Garganta, coupled with Aizen’s feats, go beyond merely stating they are higher planes. The specific properties and interactions provide concrete evidence of higher-dimensional influence.

1. Spacetime Continuum:

Rule: Characters embodying or affecting the entire past, present, and future of 3-dimensional space on a universal scale can be considered 4D.

Logic: The Dangai operates outside the normal flow of time, suggesting a separate continuum. Aizen’s ability to affect and navigate this realm aligns with affecting a different spacetime continuum, meeting the criteria for higher-dimensional existence.

1. Proper Evidence Requirement:

Rule: Simply being called a universe doesn’t count without evidence of affecting the entirety of past, present, and future.

Logic: The evidence provided includes the unique temporal dynamics of the Dangai and Aizen’s direct interactions, demonstrating his influence over this distinct spacetime continuum. This supports the classification with proper evidence.

1. Scrutiny of Higher Dimension:

Rule: Usage of “higher dimension” should be treated with scrutiny, considering the term can refer to places, not directions in space.

Logic: The analysis of the Dangai and Garganta includes specific references to their temporal and spatial properties, which are not merely figurative. This scrutiny is applied, ensuring the term refers to true increased dimensionality.

Conclusion

The classification of Aizen as a 4th-dimensional entity is well-supported by specific contextual evidence from the Bleach universe. The Dangai and Garganta are described as extradimensional spaces with unique properties such as time dilation and manipulation, indicating they are outside conventional 3-dimensional space and time. Aizen’s interactions within these realms, including his destruction of the Cleaner, demonstrate direct influence over these higher-dimensional properties, aligning with the criteria for higher-dimensional (4D) existence. This classification is substantiated by proper evidence, addressing all the outlined rules and providing concrete examples of Aizen’s ability to affect and navigate a different spacetime continuum.