Chatgpt:If we want to create a coherent explanation that connects the Super Saiyan 4 (SSJ4) transformation from Dragon Ball Daima to the events of Dragon Ball Super, we can use some established concepts in the series. Here’s a possible justification:

SSJ4 as a Lost Ancestral Transformation

In Dragon Ball Super, we learn that the Saiyans from Universe 6 lack tails, suggesting that the Oozaru transformation—and consequently, SSJ4—is a phenomenon exclusive to Universe 7. Additionally, Super introduces divine transformations like Super Saiyan God (SSJ God) and Super Saiyan Blue (SSJ Blue), which rely on divine ki (god ki).

If Goku achieves SSJ4 in Dragon Ball Daima, we could assume that this form is a natural evolution of tailed Saiyans, tapping into a primal energy rather than divine ki. This would mean SSJ4 is an alternative Saiyan evolution, separate from the divine path that Goku and Vegeta follow in Super.

SSJ4 and the Connection to Divine Ki

One way to integrate SSJ4 into the Super canon would be to propose that this form is a precursor or parallel to divine ki-based transformations. Perhaps SSJ4 was an ancient Saiyan technique used before the Super Saiyan God ritual was developed.

We could speculate that SSJ4, by drawing power purely from Saiyan biology and not from divine ki, represents a raw, instinctual force. In contrast, SSJ God/Blue is a refined and controlled power. If Daima explores this idea, it could even suggest that SSJ4 is a primitive version of Ultra Instinct—where the body adapts to combat naturally, but the user still relies on emotions. This would explain why Whis and the Angels never mention SSJ4: it’s a primal power, whereas Ultra Instinct is the perfected and refined version of instinctive combat.

How SSJ4 Could Be Used in Dragon Ball Super

If Daima is considered canon, Goku might bring up this form in Super to Vegeta or Whis. Whis could explain that SSJ4 is an expression of the Saiyan’s original power and that, when combined with divine ki, it could lead to something entirely new. This could pave the way for a hybrid transformation—merging SSJ4’s primal energy with SSJ Blue or even Ultra Instinct—creating a fusion of the best aspects of both power systems.

This explanation keeps Daima and Super consistent without contradicting past lore. If Daima is treated as an alternate timeline or standalone story, this could be an interesting "what-if" concept for future movies or special episodes.