Appendix · Additional Notes

"0" (Zero as a
    Category          Number)              "ㅇ" (Hangul Letter)            Connected Meaning
                                                                      Though it represents
    Existence The number of              The sound of absence         “nothingness (mu),” it
              absence                                                 functions as presence within
                                                                      a system
              Maintains place      Maintains   syllable
    Function value; enables        structure (an  initial    Framework      of order,
                                   consonant
              numerical systems sound)         with  no      structural  foundation

    Philosoph Emptiness (bim,      Silence; the potential    A space of possibility, a
       ical   void); the potential before sound              turning point that creates
    Meaning before existence                                 being from non-being
              Circle               Circle as a consonant, or Heaven, the universe, one
     Shape                         the dot ㆍ (Hanul-A) as of the three geometric
    Meaning                        a vowel                   elements (ㆍㅡㅣ);
                                                             wholeness, cyclicality
              A fundamental shift
              in mathematical      A revolutionary           A  leap in abstract
    Revolutio thought; enables     foundation in writing
      nary positional notation; structure; systematic        reasoning;   a  civilizational
     Nature shared numerical       combination of sound      invention;   innovation    in the
              system across        and script                transmission    of knowledge
              humanity
                                   “Heaven” in Korea’s       Reflects  cosmological
                                   Hasattang
              Indian philosophy (Heaven–Earth– philosophy    thought in Eastern
     Origin (bim, śūnya,                                     philosophy;    fusion   of
              meaning “void”)      Human);    principle      practicality  and
                                   behind the creation of    metaphysics
                                   Hunminjeongeum
     Modern Foundation of the          Scientific  structure   of     Cycles  of  emptiness   and
    Significan digital revolution      Hangul;    basis  for          fullness;  a  bridge  between
        ce     (binary system)         Hangul   input   systems    in the  digital and  analog
                                       the digital age                worlds
    Mathema    Additive  identity (a   Combines     with   vowels     A  fixed  point  in a system;
      tical /  + 0  = a);              to generate   a range    of    center  of relational
    Linguistic multiplicative          sounds;   serves   as a        meaning;     balance  between
     Relation  absorbing   element  (a neutral  base  for             change   and   constancy
               × 0 = 0)                consonants
                                       Originated from
                                       “Heaven    is round”    in
               Evolved from a dot Hasattang and Wonnese A convergence of natural
    Developm into a circle;                                           observation    and
        ent    independently           (Circle–Square–                philosophical    thought;  an
     Process invented in various       Triangle)   philosophy;        independent     discovery  of a
               cultures                evolved  into   Hanul-A        universal   principle
                                       (ㆍ); combined with
                                       phonetic principles


                             #Number 0 and Hangul initial letter ㅇ


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