Ahh, Fitzgerald, came out as wise as he went in. Judging by the author's manner with people one hesitates to intercalate. One is promised pursuit in Court. In short and all we are back with the 'known' universe, in this case the one purveyed is numbers. Opposed, one takes it or inverses.
Numbers are uniform units, all the same, with ordinal names for a mere few.
One adds an Oops for the imaginary number 'i', anuniform. By how one defines zero, a rather ambiguous concept indeed, some six different number systems are classed. With counting numbers zero is lacking. One may have no apples, nothing to count, but never minus apples, that needs another definition of zero. Maybe I am foolish and don't really understand mathematics.