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I think he's the one who showed that light traveled faster in the past, didn't he?
In practical sense, yes, to be more precise the intrinsic speed of light didn't change, but is slowed down by interactions with virtual particle pairs that are caused by the Zero Point Energy. The existence of these virtual particle pairs is indicated by experiments like the Casimir effect. Barry's Cosmology assumes the ZPE didn't yet exist right after the creation event, but came into existence via Planck's Particle Pairs that which in turn came into existence by the stretching of the Universe which was a direct act of God. With the none existence of the ZPE, or only with still very low value, the light of speed was at or near its intrinsic speed.
No I don't have these
Some time ago we had a poster on this site who was [almost] a Mensan, and he said the speed of light has never changed, but appears to slow down because it hits particles along its path and "ping-pongs" its way to the observer.
This isn't it, but it comes close: Ask a physicist anything. (7)
Right, and just like actual atoms slow down photons, likewise the virtual particles that pop in and out of existance where zpe waves collide will slow down photons.
The virtual particles will not affect any of the properties of the photons that are captured by it, the photon is "released" because the virtual particle pairs are annihilated almost instantly when they recombine. So this release process is different from the process with regular atoms. So the only result would be a miliscule delay of the photon for each encounter with a virtual particle, it's the massive amount of virtual particles that adds up to an enormous decrease of the light speed.
Your description seems to be a bit too simplified. What I understand to be the thesis is that zpe would be a key influencer of the atomic energy. With an assumed lower zpe in the past the atomic energy would be lower, thus light that was emitted at that time would also be of lower energy, thus with lower wave lenght, thus more redish.
So you're saying you don't take these ideas seriousely right of the bat, not giving them a fair consideration at all? Why do you take this position? It does resemble a lot to the responses of the current woke culture...
See post 11, what I understand from it (just a layman talking here...) is that the properties of the photons (like wavelenght, intrinsic speed or direction) would not be affected by the interaction with the virtual particles (that pop into and out of existence from the zpe) but that only a small delay in transition would occur.
Photons interact with particles and fields through scattering.
I've lost count the of the number of plasma cosmology models out there but this generic it interacts with matter causing redshift (insert mechanism here) are all destroyed by a simple observation; some photons emitted from the CMB are polarized as they are Thomson scattered by the plasma formed some 300,000 odd years after the BB.
