While watching this video on quantum entanglement and gravity I came across this comment which I have taken the liberty to highlight key points. Basically, time as a moment of a clock in space was assumed by Relativity and
never proven, which Einstein himself attested to. You can ignore the video. I am including it to reference the comment.
https://youtu.be/bKjgNznlkcI
Comment by:
Matthew Marsden
(Auth “A Brief History of Timelessness)
To unify any two theories (e.g. Relativity and Quantum), one should be very clear that each and all of the phenomena suggested by both theories Is reasonably confirmed.
Otherwise, if one or other theory is believed to prove something that it in fact does not, and this not noticed, then one may be endlessly trying to fit two pieces of a puzzle together, thinking the problem is very hard, because one is not realising that one piece may actually be bogus.
In this talk, Professor Dowker refers to, and incorporates into her explanation, Relativity, and space-“time”. Suggesting that she accepts that “time” is a phenomena that exists, and is merged with space, and that this is proven to a reasonable extent by Relativity. And thus is trying to work out how to merge space-time with the quantum arena.
However, if we actually check for ourselves, and look at the seminal paper on Relativity, ( translated ) “The electrodynamics of moving bodies”, we find that concerning the theory of time it actually says...
A.Einstein, (Section § 1. Definition of Simultaneity) quote...
“If we wish to describe the motion of a material point, we give the values of its co-ordinates as functions of the time. Now we must bear carefully in mind that a mathematical description of this kind has no physical meaning unless we are quite clear as to what we understand by “time.” “
And...
“If, for instance, I say, “That train arrives here at 7 o'clock,” I mean something like this: “The pointing of the small hand of my watch to 7 and the arrival of the train are simultaneous events.” “
Here, to avoid accepting, and attempting to explain and incorporate phenomena which may in fact not be proven be Relativity, I think it is important that professor Dowker considers the following.
Where apparently describing a thing called “time”, “The electrodynamics of moving bodies”, says we describe “the motion of a material point” , “as functions of the “time” “.
However the paper clearly only actually describes the comparing the motion of a material point ( a train) , with the motion of another material point “a motorised pointer on a numbered dial”.
In other words, from the outset Special Relativity does not actually show the existence of a past, a future or a thing called time, that must exist and pass for things to be able to exist and move, but instead
Relativity only assumes that a thing called time exists, and that a rotating hand in some way proves or indicates this.
(i.e. just saying "time is that which clocks measure, is nonsense, no matter who says it, unless one can scientifically prove, rather than just assume, there is a "past" and or "future", and an extra thing called time that must exist, extra to the energy in a spring or battery that IS clearly measured by such a motor).
SR does show us that for easily understood reasons that
“all moving oscillators are oscillating more slowly than expected”,
And this fact is of course essentially incorporated in GPS satellite oscillators etc.
But logically, and scientifically, just observing the rotating tip of a motorised hand and “calling” that motion “time”, is in no way at all scientific proof, as per the scientific method, that there IS a past, or a future, or a thing called time that exists and passes between a past and future.
And, more importantly, just observing that a moving oscillator is oscillating more slowly than expected, is not scientific proof as per the scientific method, that one’s “guess” that a thing or place called the “past”, and or the “ future” and a thing called “time” must exist. Logically, it is only confirmation bias that would make us assume this.
In other words, while it is agreed with the professor, that a rapidly moving twin will be “changing more slowly” that a stationary twin, without specific proof it cannot actually be logically and scientifically accepted that this is because of, or proves the existence of a thing called “time”, or that the moving twin is changing more slowly becasue a thing called time is dilated in its passage between a "past and "future", and is thus affecting the twin.
(imo, the importance and consequences of seeing how SR may in fact in no way prove the existence of a 4th dimension, and realizing tha many professionals assume, without actually checking, that it does , cannot be over estimated. I.e it may lead to the conclusion that matter just exists, moves changes and interacts "now", or "timelessly" so to speak, effectively disolving and solving the so called "problem of time", and all eliminating all discussion of temporal paradoxes etc)
And, despite the fact that many people cite Relativity as apparently proving that extra to space, matter and motion, a thing called time exists, unless they can actually show where Relativity from the outset proves, rather than just assumes, the existence of a thing called “time”, and where the paper proves there may be a thing or place called “past” and or “future”, rather than just assuming these “things” are obvious, and for some reason exempt from needing proof as per the scientific method, the concept of “time”, and the existence of 4 dimensional space-“time”, should not be considered scientific fact.
Therefore , if the professor is trying to unify quantum mechanics, with the concept of space”time”, but the time component she has just accepted as proven, but cannot actually cite the proof of, then this “time” component may be a falsehood that does not exist, and need not be included in the unification.
i.e imo, probably wrongly assuming a thing called “time” does exist, and must be incorporated as in space time, will make professors Dowkers problem seem harder to solve than it may actually be.