Originally Posted by SS2 Vegeto

And no, it clearly, clearly doesn't mean earth. The ningenkai and the makai, for example, are clearly expressed in the manga as separate dimensions and realms of existence, and ningenkai is never expressed in a planetary sense. Ningenkai, in legend, traditionally was earth, serving as a hunting ground for the yokai from makai, yet only because as far as they knew back then earth was the mortal realm. It was everything physical to them. Yu Yu Hakusho clearly expresses ningenkai in a dimensional sense, a realm of existence...and no; a planet hardly passes as a "realm of existence". The sense it is used in, in Yu Yu Hakusho (as in legend, however our awareness of a physical world expanding far beyond our own planet) is the separation between the physical world and the spiritual world...i.e. characters who can "destroy the ningenkai" (a feat actually highly insignificant in comparison to the power of individual's such as Raizen) can destroy our physical world. Certainly not refering to a planet.

This was basically discussed thoroughly way back when on Invision Power Boards, mfg 3.0, and it always inevitably lead to the same conclusions: the ningenkai equals the mortal universe, and thus Yu Yu Hakusho characters can destroy entire plains of existence...and Dragonball characters can't; the makai is essentially a multi-dimensional plat-form of infinite infinities, that can apparantly be destroyed with absolute utmost ease by Raizen in his prime....which Dragonball characters certainly can't do; a few characters in the series appear to be nigh omnipotent, which certainly can't be said for Dragonball characters.