Equivalently, it is the sound of rationalization. This word implies rational numbers as the ratio of an integer numerator over an integer denominator. Since integer represents quantization, the ratio of integers represents rationalized quantization. In the theory of information, the word ‘entropy’ is defined as the lost of information. As rationalized quantization, entropy increases whenever the numerator decreases or remain constant, while the denominator remain constant or increases, or the numerator decreases and the denominator increases. Entropy is zero if and only if the numerator is exactly equal to the denominator. In the theory of language, sound of rationalization of words and their common usage to a group of people who are of the same community or nation, the same geographical area, or the same cultural tradition have developed into distinct forms of speeches for oral communication, giving them the ability to express one’s thoughts and emotions. The localized historical developmental process of language inevitably produced varied forms of phonemes and morphemes and their subsequent transformations into texts and writings supported by a set of phonetic alphabets. These became the science of phonetics as the study of speech sounds and their production, transmission, and reception, and their analysis, classification, and transcription. All these became possible by the physical fact of a voice of reason implying the existence of quantum of sound called phonons.

Nevertheless, the advancement of the theory of communications, whether by speeches or by written texts (maybe not by ESP), still could not reach an effective level of global communication among the various languages around the world. This failure can be blamed in parts by the increasing difficulty of each process of phonetic education. A process of learning that increases its own complexity as it develops independently, dynamically, and chronologically; reaching a realization of increase entropy of information comparable to the increase of entropy of thermodynamics such that the numerator of every rationalized quantization increases slower than its corresponding increase of the denominator. A reverse process of increasing the quantized numerator would require a very loud voice of reason whose sonar harmonics can accommodate and envelope all the infinitely countable tiny but dissonant harmonics of the rationalized denominator.