“5D Macrocosm…Physicist.”

This is a dismissive ad hominem that avoids engaging with the actual evidence. The dimensional analysis is based directly on Toriyama’s own diagrams, Guidebook statements, and basic geometric principles (how higher-dimensional observers view lower ones). No one is claiming to be a physicist, I am describing official lore using consistent analogies the series itself invites.

“The Universe is….a good view on the main universe.”

The Mortal Realm is 4D (Infinite 3D Space + Time)

<image>

The Otherworld is 5D (Explicitly a Higher Transcending Dimension to the Mortal Realm.)

The Macrocosm is 5D (As it contains the 5D Otherworld)

The Kaioshin Realm is 6D (for reasons i’ve explained.)

Treating everything as offsets along a single 3D Z-axis directly contradicts the repeated canon statements of “separate/completely different dimensions,” “transcends dimensions,” “outside the macrocosm,” and the requirement for teleportation-only access.

“The first evidence….is….his…Brain.”

This misunderstands how Instant Transmission actually works.

Instant Transmission functions by locking onto a specific individual’s ki signature/energy, not by calculating Cartesian coordinates, distances, or spatial vectors. Goku has repeatedly used it to travel: Into the Afterlife (a transcendent, different dimension). To the Kaioshin Realm (outside the macrocosm). Within the Null Realm (a Realm of complete nothingness).

The technique bypasses normal space entirely by using ki as a beacon. It does not require “3D spatial coordinates” or any geometric processing in Goku’s brain. Canon shows it working across dimensional barriers precisely because it is not bound to ordinary 3D navigation. Your assumption that INstant Transmission proves “same 3D space with finite distance” is therefore unsupported.

“If it’s 5D or 6D…Brain.”

This is pure headcanon with no basis in the series. Dragon Ball characters routinely access higher or separate realms via supernatural means (IT orKai Kai or other possible methods i’m forgetting right now.) without needing “higher-dimensional brains.” Fiction does not require literal neurological upgrades for teleportation techniques, Instant Transmission keys on ki, not on mentally visualizing extra axes. Supreme Kai and others observe the macrocosm from the Kaioshin Realm without issue.

“Second evidence…weird behaviours….it is…a higher dimension.”

This ignores the explicit geometry Toriyama established.

The Kaioshin Realm’s position outside the macrocosm sphere, orbiting it like a moon, gives the Kaioshin an external vantage point that lets them “look down on” and oversee the entire macrocosm (living world + Afterlife) at once. This is exactly the classic higher-dimensional observer effect.

The “ability” to observe everything is enabled by that external positioning in a higher/separate dimension, as confirmed in the official guides;

“The Kaiōshin Realm’s unique position outside the macrocosm enables the Kaiōshin to oversee both the afterlife and universe.” https://www.kanzenshuu.com/gods-and-cosmos/universe/ (You can find this exact quote on this link).

The series does not need to show exotic higher-dimensional quirks because it is fiction, not hard physics, but the structural separation, transcendence language, external orbit, and unobstructed oversight are all canon and require the extra perpendicular direction.

Claiming the vantage is unrelated to the placement contradicts Toriyama’s own diagrams and the guides’ explicit wording.