en, you hit the bulleye.and now i am enlightened by your stance that "Vast" denotes the quantitive perspective characteristic of the multitude, rather than the qualitative of the amplitude of the variegation itself.
l hold my understanding that Vast only signifies the size of population.
nevertheless my understanding qua personal perception may not necessarily be congruent with your purport.
Huasing Association 1999 - 2013