If Light Can Slow Down in Vacuum, What Then?

Dec 27, 2022
If light can slow down in vacuum, then we have a static-universe explanation of both the cosmological (Hubble) redshift and Halton Arp's intrinsic redshift. The idea of slow speed of light in vacuum is not too preposterous:

"Some physicists, however, suggest that there might be one other cosmic factor that could influence the speed of light: quantum vacuum fluctuation. This theory holds that so-called empty spaces in the Universe aren't actually empty - they're teeming with particles that are just constantly changing from existent to non-existent states. Quantum fluctuations, therefore, could slow down the speed of light." https://www.sciencealert.com/how-much-do-we-really-know-about-the-speed-of-light

Can light slow down in vacuum? Yes:

"The speed of light is a limit, not a constant - that's what researchers in Glasgow, Scotland, say. A group of them just proved that light can be slowed down, permanently..."But once that pattern has been imposed - even now the light is no longer in the mask, it's just propagating in free space - the speed is still slow," Padgett added." http://www.upi.com/Science_News/2015/01/23/Scientists-slow-down-light-particles/1191422035480

"Glasgow researchers slow the speed of light"
View: https://www.dailymotion.com/video/x2ffsym

"Researchers at the University of Ottawa observed that twisted light in a vacuum travels slower than the universal physical constant established as the speed of light by Einstein’s theory of relativity...If it’s possible to slow the speed of light by altering its structure, it may also be possible to speed up light. The researchers are now planning to use FROG to measure other types of structured light that their calculations have predicted may travel around 1 femtosecond faster than the speed of light in a vacuum." https://www.optica.org/en-us/about/newsroom/news_releases/2016/slowing_down_light_with_a_twist/
Dec 27, 2022
"The CMB is a perfect example of redshift. Originally, CMB photons had much shorter wavelengths with high associated energy, corresponding to a temperature of about 3,000 K (nearly 5,000° F). As the universe expanded, the light was stretched into longer and less energetic wavelengths. By the time the light reaches us, 14 billion years later, we observe it as low-energy microwaves at a frigid 2.7 K (-450° F). This is why CMB is so cold now." https://www.universeadventure.org/big_bang/cmb-origins.htm

No. This stretching of light is one of the most preposterous concepts in the history of science. The wavelength of light is invariable. Frequency and speed vary proportionally, in accordance with the formula

(frequency) = (speed of light)/(wavelength)

The so called Cosmic Microwave Background (CMB) is extremely cold because the speed of its photons is extremely slow.

The fundamental axiom of future, Einstein-free physics will be

The wavelength of light is constant (depends only on the nature of the emitting substance and is constant otherwise).

Corollaries of "The wavelength of light is constant":

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

Corollary 2: If the emitter and the observer travel towards each other with relative speed v, the speed of light relative to the observer is c' = c+v, as posited by Newton's theory.

Corollary 3: Spacetime and gravitational waves (ripples in spacetime) don't exist. LIGO's "discoveries" are fakes.

Corollary 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.

Corollary 5: The so-called cosmological (Hubble) redshift is due to the speed of light gradually slowing down as light travels through vacuum, in a non-expanding universe.

Corollary 6: The dark sky in the Olbers' paradox can be explained by two facts. 1. Low-speed, high-redshifted light (known as CMB), coming from very distant sources, is invisible. 2. Beyond a certain distance, the star light does not reach us at all (its speed relative to us is reduced to zero).