[deleted]
Ms Vasilyeva
I have commented on spatial dimension above.
The incorrect modelling of time as a dimension (or variable) of physical reality (Minkowski), stems from Poincaré and his flawed concept of simultaneity (as repeated in the first section of Einstein 1905). [This variable then became a surrogate for the originally postulated variable, which was dimension alteration. Whether that occurs or not is another issue].
Physical reality occurs. So, whether two or more existent states occurred as at the same point in time, can only be established by analysis of the actual physical circumstances (either specifically or generally), and not by the false concepts of time from Poincaré.
Using extracts from: Einstein: On the electrodynamics of moving bodies (1905), Section 1 Part 1 Definition of Simultaneity:
Para 3: "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.""
Comment: Incorrect. The two events did not occur simultaneously on this basis. The train was at its specified spatial position before the hand on the watch reached its specified spatial position. Because, for a physically existent state to be observed, the photons which reacted with it (and thereby, in the context of the sensory system known as sight, conveyed a representation of it) must reach the observer. And the consequent delays involved are different, since the relative spatial positions of train and watch, vis a vis observer, are different. Indeed, the relationship of those spatial positions, ie original vis a vis on receipt of light, could alter at different rates during the delays, if the entities involved are moving at different speeds (dimension alteration could be an additional factor in this situation). Furthermore, there can be no presumption that light travelled at the same speed in both circumstances, since that can be afffected by environmental circumstances. Finally, at the practical level, the two observations would be effected consecutively, ie upon receipt of information about the train, the observer would then look at the watch.
Para 4: "but it is no longer satisfactory when we have to connect in time series of events occurring at different places, or-what comes to the same thing-to evaluate the times of events occurring at places remote from the watch." And Para 6 third part: "But it is not possible without further assumption to compare, in respect of time, an event at A with an event at B."
Comment: Incorrect. Physically existent states do not each have their 'own' time. They exist as at a point in time. Timing being an extrinsic measuring system which, with the use a common denominator, enables the establishment of the relative relationship between occurrences (and enables comparison of rates of change).
Para 6 fourth part: "We have not defined a common "time" for A and B, for the latter cannot be defined at all unless we establish by definition that the "time" required by light to travel from A to B equals the "time" it requires to travel from B to A."And Para 7: "In accordance with definition the two clocks synchronize if: t(b) - t(a) = t'(a) - t(b)
Comment: Incorrect. No more than one physically existent state can be in the same spatial position at a time. The concept of 'immediate proximity' is false. As at any given point in time, everything is in a relative spatial position. It is just that some entities are nearer each other than others, but there is always a distance between any two. As at any given point in time, AB is a specific distance. So whether it is measured as A to B, or B to A, is irrelvant, as too is the method used to calibrate and express that. That is, it is not necessary to use light to determine the time taken to travel that distance. And it is incorrect to assess this in terms of a relationship between the duration incurred one way, and then the duration to subsequently travel back. This introduces a factor which is non-existent, ie reifies time as a dimension, and because of the coincidental use of light speed (as opposed to any other possibility) implies a property thereof which is incorrect.
Paul