Actually, he does say that the upwards acceleration manifests as physical phenomena. At around the 5:50 mark he explains
I won't bother re-quoting the part you quoted in which he doesn't say it's a physical phenomenon at all.
He very carefully explains that it's the
time dilation which causes the shift. Nothing physical at all. With the cones he explains how the ground can be accelerating upwards on different sides of the earth without the earth expanding. Not sure why you are ignoring that.
The cherry picked quote doesn't even say what you claim.
It is using the same mechanism of a policeman's radar gun which uses the red or blue shift of light to determine acceleration. When cars are accelerating away from the policeman, the light redshifts.
You think the cars have to be accelerating for them to work? That would be very inefficient, they'd never catch anyone speeding who is going at a constant speed. They do work by Doppler shift, usually of radar not visible light. Some use lasers and they also use the time taken for the signal to return to the device.
That's not the only part of the argument. The other part is that there is a lack of evidence that the earth's surface is accelerating upwards through space time or bending space.
The evidence is the observations and experiments. Einstein's theory of gravity predicts these things, Newton's doesn't. Multiple experiments have been done which observe the things Einstein predicted. That's how we know that Einstein's model of gravity is better than Newton's. Although Newton's works fine in most circumstances. As I said, GPS satellites take Relativistic effects into account in order for it to work accurately
https://www.gpsworld.com/inside-the-box-gps-and-relativity/Actually this thread shows that mainstream science is cherry picking what to accept. It can't accept an upwardly accelerating earth
Another one of your "no u" arguments.
You literally started this thread by citing Brian Cox explaining how earth is accelerating upwards. My video also says that, but it also explains that it is not a physical acceleration - again, the cone thing. It's an acceleration through spacetime. The weird thing is on this Wiki page you use Relativity to explain why UA doesn't accelerate the earth beyond the speed of light:
https://wiki.tfes.org/Universal_Acceleration#Accelerating_to_the_Speed_of_LightThis is another example of your cherry picking. You use Relativity to explain things when it suits you, you dismiss it as some magical mystical thing which can't be true when it doesn't suit you.