The constant-speed-of-light falsehood goes hand in hand with the variable-wavelength-of-light falsehood:

https://www.youtube.com/watch?v=xsVxC_NR64M

Stephen Hawking, "A Brief History of Time", Chapter 3: "Now imagine a source of light at a constant distance from us, such as a star, emitting waves of light at a constant wavelength. Obviously the wavelength of the waves we receive will be the same as the wavelength at which they are emitted (the gravitational field of the galaxy will not be large enough to have a significant effect). Suppose now that the source starts moving toward us. When the source emits the next wave crest it will be nearer to us, so the distance between wave crests will be smaller than when the star was stationary." http://www.fisica.net/relatividade/s...ry_of_time.pdf

This variation of the wavelength of light contradicts the principle of relativity. If the wavelength varied, by measuring it, Zoe (the emitter) would know how fast she is moving, without having to look at objects outside her system:

https://newt.phys.unsw.edu.au/einste...eird_logic.htm

The wavelength does not vary with Zoe's speed - accordingly, Jasper (the receiver) measures the speed of light to be c'=c+v, not c. The truth is Newtonian, not Einsteinian.

The proposition

"The wavelength of light is invariable",

generalized over all possible scenarios, will become the fundamental axiom of future physics. Here are five important conclusions validly deducible from it:

Premise 1: The wavelength of light is invariable.

Premise 2: The formula (frequency) = (speed of light)/(wavelength) is correct.

Conclusion 1: Any frequency shift entails (is caused by) a speed-of-light shift.

Conclusion 2: If the emitter and the observer (receiver) travel towards each other with relative speed v, the speed of light as measured by the observer is c' = c+v.

Conclusion 3: Spacetime is an absurdity. Gravitational waves (ripples in spacetime) don't exist - LIGO conspirators fake them.

Conclusion 4: Light falls in a gravitational field with the same acceleration as ordinary falling bodies - near Earth's surface the accelerations of falling photons is g = 9.8 m/s^2. Accordingly, there is no gravitational time dilation - Einstein's general relativity is nonsense.

Conclusion 5: The Hubble redshift is due to light slowing down as it travels through vacuum. The universe is STATIC, not expanding.

Pentcho Valev