The de Broglie phase harmony theorem — one of the original foundations of wave mechanics — already appears to contain the core structure of the NTU pantographic principle with both axes. Louis de Broglie originally noted that the Lorentz factor appears simultaneously and symmetrically in the two complementary descriptions of a particle’s energy — one expressed through frequency and wave propagation, the other through relativistic mass and inertia:

• at the numerator in the wave description,
• and at the denominator in the internal frequency transformation.

This inverse transformation structure is remarkably similar to the NTU pantographic transformation law. https://notimeuniverse.com/last-news/