The term "variable" is employed in literature across a wide spectrum of meanings, illustrating both measurable differences and metaphorical change. In scientific and natural histories, it often characterizes physical or biological traits—such as degrees of organ development, fertility, and secondary sexual characters—emphasizing that these qualities can differ within a species [1][2][3][4][5]. Philosophers and poets, on the other hand, have harnessed the word to evoke notions of mutability and uncertainty in human behavior or fate, as seen in reflections on hope, emotion, and the capricious nature of existence [6][7][8][9][10]. In technical and linguistic contexts, “variable” denotes changeable elements like numerical values or even spellings, underscoring a constant interplay between stability and flux in language and computation [11][12][13][14][15].