Why is the 'Dragon Ball' multiverse only comprised of 12 universes

Why is the 'Dragon Ball' multiverse only comprised of 12 universes? - Quora

Why is the 'Dragon Ball' multiverse only comprised of 12 universes? - Quora

Why is the 'Dragon Ball' multiverse only comprised of 12 universes? - Quora

Universe 12 - New Future - Chapter 91, Page 2113 - DBMultiverse

Mirai” Universes: 12, 14, 15 The original timeline - Chapter 71, Page 1655 - DBMultiverse

Dragon Ball Super: 10 Things That Make No Sense About The Multiverse

Mirai” Universes: 12, 14, 15 The original timeline - Chapter 71, Page 1644 - DBMultiverse

Mirai” Universes: 12, 14, 15 The original timeline - Chapter 71, Page 1629 - DBMultiverse

All 12 Universes in Dragon Ball Super EXPLAINED! (Every Universe + 6 Lost Universes in DBS Info)

Why is the 'Dragon Ball' multiverse only comprised of 12 universes? - Quora

Universe 12 - Hope and despair - Chapter 92, Page 2157 - DBMultiverse

Multiverse, Dragon Ball Wiki

In the Tornament of power why did only 8 universe out of 12 universe's participate? - Quora

I just realised the Universes that didn't participate in the tournament are both twin pairs : r/Dragonballsuper