On Monday, 17 April 2023 at 00:07:57 UTC+1, Pentcho Valev wrote:
The Big Bang cosmology is doomed. The James Webb telescope's images are too drastic, the public has become too sensitive - it would be naïve to start tweaking the theory again. Dr. Becky and the other money makers will have to shift their allegiances
a little bit.
But then how can the Hubble redshift be explained in a nonexpanding universe? Let us ask Hubble himself:
"Reber (1982) pointed out that Hubble himself was never an advocate for the expanding universe idea. Indeed, it was Hubble who personally thought that a model universe based on the tired-light hypothesis is more simple and less irrational than a model
universe based on an expanding spacetime geometry...any photon gradually loses its energy while traveling over a large distance in the vast space of the universe." Wilfred H. Sorrell, Misconceptions about the Hubble recession law, Astrophysics and Space
Science, Sep 2009
http://paperity.org/p/19837385/misconceptions-about-the-hubble-recession-law
Dec. 14, 1936: "Other causes for the redshift were suggested, such as cosmic dust or a change in the nature of light over great stretches of space. Two years ago Dr. Hubble admitted that the expanding universe might be an illusion, but implied that
this was a cautious and colorless view. Last week it was apparent that he had shifted his position even further away from a literal interpretation of the redshift, that he now regards the expanding universe as more improbable than a non-expanding one."
https://content.time.com/time/subscriber/article/0,33009,757145,00.html
Why don’t those opposed to BBT ,like Pentch and Eric Lerner, accept
the possibility that light can redshift over distance. Without slowing down. Heres 2 good reasons. Please tell Eric about this too.
If light slows down in a non expanding universe then it is
slowing down relative to the source. Which means...
It’s wavelength in the *source frame* is smaller the farther
it travels.
Something Pentch and Eric fail to understand seeing as they
say that light slows down in a non expanding universe to account
for cosmological redshift, but stays the same wavelength!!!?.
And the second reason is if you allow lights property
to be such that over distance it redshifts BUT, keeps
It’s speed c. Then this means only one thing. It’s frequency
changes over distance. And if you do a mathematical simulation
of what happens in this scenario then the simulation shows that
lights wavelength lengthens over distance as it’s frequency slows
and it’s speed remains the same.
Sounds counterintuitive buts it’s true. Basic maths.
So there is not much choice. Either the euphemism, "any photon gradually loses its energy", or the plain truth, any photon gradually loses its SPEED. The idea that vacuum slows down light has been largely discussed but only in terms of quantum gravity.
The analogous idea - that the cosmological (Hubble) redshift might be due to slow speed of light - is blocked by crimestop::
Forget photons Pentch. They are a fantasy dreamed up,by serial fantasist Albert Einstein. To make sure his SR paper published later that year
didn’t look like a load of BS.
"...in some quantum-gravity models, the speed of photons in gamma rays would be affected by the grainy nature of spacetime..." https://fqxi.org/community/articles/display/255
Sabine Hossenfelder: "It's an old story: Quantum fluctuations of space-time might change the travel-time of light. Light of higher frequencies would be a little faster than that of lower frequencies. Or slower, depending on the sign of an unknown
constant. Either way, the spectral colors of light would run apart, or 'disperse' as they say if they don't want you to understand what they say. Such quantum gravitational effects are miniscule, but added up over long distances they can become
observable. Gamma ray bursts are therefore ideal to search for evidence of such an energy-dependent speed of light."
http://backreaction.blogspot.fr/2017/01/what-burst-fresh-attempt-to-see-space.html
Sabine is devious. She is pretending the small change of lights frequency over distance
Can account for the observed fact that a gammarayburst sees its frequency go from gamma
to optical in minutes. And from optical to radio in hours/days.
"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
George Orwell: "Crimestop means the faculty of stopping short, as though by instinct, at the threshold of any dangerous thought. It includes the power of not grasping analogies, of failing to perceive logical errors, of misunderstanding the simplest
arguments if they are inimical to Ingsoc, and of being bored or repelled by any train of thought which is capable of leading in a heretical direction. Crimestop, in short, means protective stupidity."
Pentcho Valev https://twitter.com/pentcho_valev
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