That's an impressive view of it, IMO. Light slows down with denser mediums, but if something can slip through and avoid all the medium it must travel, perhaps there is no time delay, or perhaps it doesn't encounter time at all (spacetime).
My understanding, which is quite limited, is that entangled particles are extremely reliable in producing a given result -- if one is found to be green then the other will be red. This may even be 100% reliable, but I look forward to someone verifying or correcting this view.
Also, if you actively cause the one to turn green, the entanglement is broken, so red isn't guaranteed. Otherwise, we could use entanglement to communicate instantly.
You can think "quantum entanglement" and you can look at it, Einstein's mind flights, and think in terms of 'quantum entanglement-like
', which is a heck of lot closer to the picture of a certain actuality, right? But you might not say the second, exactly that way. You just give "quantum entanglement" more than one dimensional interpretation. You give it more dimensions than one.
Continuing on into what is started. You take it on up into the macro-verse but picturing quantum entanglement-like
structure of the unobservable
(it will be unobservable being simultaneous structure in space and time) universe as a quantumly entangled-like
2- and 3-d latticework simultaneity throughout space and, also, throughout time. Though Stephen Hawking never mentioned anything of quantum entanglement per-se, he did present a picture of a "Grand Central Station" of Universe with a single clock having a single hand and a single digit -- always midnight / pre-morning -- always above the center point of the Station. All passing through that Station and under that clock. Physicist and friend of Hawking, Roger Penrose, called it something different, "The table of God," meaning having likeness to the fabled "Horn of Plenty" and "Fountain of Youth." As a lifelong student of history I could see for myself that widening frontiers of space and time (and they are frontiers of both space and time in one) has always been a "fountain of youth" -- meaning a fountain of expanding renewal of energies and life -- for life.
Me, I call it the Big Mirror, mirroring Universe to infinities of universes and travel is always out from any departure point into
the infinity of horizons in the Mirror (or as Lewis Carroll once put it in a quantum mechanics related work of fantasy, into "The Looking Glass". We will one day find out, it we ever break out into that vastly greater dimensionality (a multi-dimensionality) than the surface of the Earth (than the entire very entropic closed system -- one world -- dimensionality of the "planet" Earth).
I fight for this picture of grand potential not for myself at my age, but for my children, my grand-children, my great grand children, already living, and hopefully for a few great-great-grand children my wife and I may live to see. I see their universe richly grand in its possible, probable, dimensions and potential possibilities for them. In just seeing it for them, I suppose I see it for my wife and myself too while we live.
We will go out and into the Mirror.....