What i am saying is that GR is describing a reality that is independent of any synchronization convention.
It doesn't matter whether you use ASC or ESC; they describe the same reality. It is like choosing to use Imperial instead of Metric to do your calculations.
ASC is not wrong, it's just clumsy.
On ESC, light from 100,000LYs away was emitted 100,000 years ago.
On ASC, light from 100,000LYs away was emitted 100,000 years in the future.
That doesn't change the fact that the event of emission happened closer to the beginning of the universe in Proper Time (not coordinate time).
The age of the universe is not dependent on any synchronization convention.
So using ASC to get around the Starlight Problem is just clever semantics. You can say that an event in past Proper Time hasn't happened yet (in your chosen incoordinate time).
It's not the same thing as saying that you can see a distant event as it is "now" in "real time". You've just dated past proper time events as current "now" events. Since there is no "now" in GR, you can make silly statements like that without contradicting yourself.
This is why ASC is only ever discussed in academic literature as a philosophical exercise. ESC is standard because it describes GR using proper time as "now", making things simple, symmetric, and straightforward, but it doesn't have to be.
It doesn't matter whether you use ASC or ESC; they describe the same reality. It is like choosing to use Imperial instead of Metric to do your calculations.
ASC is not wrong, it's just clumsy.
On ESC, light from 100,000LYs away was emitted 100,000 years ago.
On ASC, light from 100,000LYs away was emitted 100,000 years in the future.
That doesn't change the fact that the event of emission happened closer to the beginning of the universe in Proper Time (not coordinate time).
The age of the universe is not dependent on any synchronization convention.
So using ASC to get around the Starlight Problem is just clever semantics. You can say that an event in past Proper Time hasn't happened yet (in your chosen incoordinate time).
It's not the same thing as saying that you can see a distant event as it is "now" in "real time". You've just dated past proper time events as current "now" events. Since there is no "now" in GR, you can make silly statements like that without contradicting yourself.
This is why ASC is only ever discussed in academic literature as a philosophical exercise. ESC is standard because it describes GR using proper time as "now", making things simple, symmetric, and straightforward, but it doesn't have to be.
@DPadenAkaterry @modalsurrealist @AstroJoeB I suggest running that past Grok, or whatever chatbot you are using, before you reply. I checked my work with ChatGPT Pro. 
In fact, i'm going to give you a link to the full chat.
You can read it for yourself and carry on the discussion if you want.
It will not give you access to the Pro features, but one of my prompts used 11m 51s of deep research to find any academic sources that might have interesting diagrams.
If you want to get better at defending your position, this is how you sharpen your blade. If you are not willing to do that, you need to sit with that fact. How do you feel about yourself?
chatgpt.com/share/68fd1f92…
You can read it for yourself and carry on the discussion if you want.
It will not give you access to the Pro features, but one of my prompts used 11m 51s of deep research to find any academic sources that might have interesting diagrams.
If you want to get better at defending your position, this is how you sharpen your blade. If you are not willing to do that, you need to sit with that fact. How do you feel about yourself?
chatgpt.com/share/68fd1f92…
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