When we read the Kybalion as a bridge from the signal concept to information theory—

 Before (to 1908): Fourier framed “phenomena as sums of vibrations,” and Maxwell with Hertz realized this view in the medium of electromagnetic waves. Heaviside treated transmission distortion and delay as properties of a system, while Pupin’s loading coils curbed long-line loss and phase trouble. Fessenden’s voice AM demo and de Forest’s triode opened techniques for actively generating, shaping, and amplifying vibrations. In this light, the Kybalion’s ideas of vibration, polarity, rhythm, and correspondence read as a “signal craft”: choosing waveforms, using inversions, aligning timing, and keeping layouts consistent.

After (1908 →): Nyquist clarified the tie between symbol rate and bandwidth; Hartley linked information amount to time and bandwidth, turning design into resource allocation. De Bellescize’s PLL put synchronization (rhythm) at the heart of engineering, and Armstrong’s FM showed a vibration form robust to noise. Finally, Shannon established channel capacity and the separation of source and channel coding, fixing correspondence as a division of roles across layers. In short, under assumptions like linearity, stationarity, and tractable noise, the Kybalion’s intuitions connect naturally to the foundations of information theory: bandwidth, tuning, inversion, and layer separation.