My point has nothing to do with whether a diety exists or whether Einstein was a deist or theist.
Of course it does, what a preposterous falsehood, your entire point was a defence of the existence of an omniscient deity, and a denial of the existence of any contradiction between that claim and perceived free will.
The theory of relativity implies a deterministic universe, regardless of whether the Abrahamic G-d exists.
Hilarious, you are at both claiming it is irrelevant to your claim that your belief in an omniscient deity does not negate free will, and here implying it supports it, or have
you in fact introduced a red herring, since you cannot have it both ways.
Best of all it doesn't support your position, and you seem unaware of it.
It describes one in which 'time' is not absolute, and shows that it is relative to a physical frame of reference.
And this has what to do with your assertion that a deity exists that knows what we will do before we do, and your denial of the logical inference that this would negate free will? So which is it, a red herring, or support for your earlier argument? Like your other arguments you seem to want to make mutually exclusive claims.
This, in itself, does not prove the existence of an omniscient G-d,
It doesn't demonstrate anything about any deity, that is axiomatic.
but it DOES bring into focus the notion of something that happens at a later time cannot have already happened [in another time frame] is only a perception ..
I thought it was red herring?
a perception of reality that you assure us is the only rational position to hold.
No I haven't, another of your very dishonest straw men. You do know that Einstein did not believe we have free will, don't you?
You have relentlessly argued that we do, so this is something of an own goal.
Which is it, do we have free will or not? As I can't keep up with your endless contradictions here?
Also if a deity knows exactly which choice we will make, before we perceive ourselves making it, and we cannot (as you have assured us) choose other than what a deity knows will choose, then the rational inference would negate free will. As Einstein believed of course, but because of relativity, and not because of an omniscient deity. So you're appeal to authority here is actually disproving your own argument, and without the need for any deity or anything supernatural.
I can't wait to see where you will shift the goal posts now.