The first problem with time travel theory is one which I have already obliquely addressed: the fact that time does not exist except as an abstract, mathematical construct. In other words, time is not a medium; it’s not a thing we exist in; we cannot travel through time because it isn’t there. Further, the admitted relativity of time according to General Relativity should make this clear to us. If time is relative to the observer, then it is utterly dependent upon the position of the observer AT ANY GIVEN MOMENT. That is, the observer’s CONSTANT frame of reference is “the moment”, or we might say the “perpetual present”—the constancy or perpetuity of his position. This “moment” or “perpetual present” is given temporal meaning by the observer’s CONSTANT frame of reference (and this is the Self-Aware Self…that is, it’s a metaphysical, not physical, reference) RELATIVE to other objects. If the observer and other objects share the same moment—the same “present”—then the relativity of time is purely theoretical. If the moment between the observer and other objects is different due to differences in acceleration, then the relativity of time becomes PRACTICAL..that is, the “time change” can be observed.
Of course the changes have nothing to do with time—time qua time—but I submit are a function of the relative difference in what I call the “direction of existence” (DOE) due to the acceleration of objects relative each other. And to briefly explicate my theory, it works something like this:
Existence is active, and therefore all objects move, or travel, in a root, “baseline”, or constant DOE. This is the source of gravity, I hypothesize, and is why objects with more mass have more gravity…they travel upon a larger or “wider” pathway of existence (POE) relative to less massive objects (this is also why light appears to bend around massive objects…light is moving past the POE, which looks like bending to an observer). When one object, A, accelerates (linearly, for example) relative to another, B, its “existence”, through an alteration along its DOE relative to B, “decrease”, which manifest measurably as “slowing” along the temporal continuum. In other words. because of the change in DOE as a function of acceleration in a new direction relative to B, A’s “time” when compared to B, using B’s time as reference, appears to decrease.
I understand that this is a very arcane and complex physical/philosophical theory, and the provided explication is by no means comprehensive nor is it intended to be. But I included it because I feel obligated to do so. It resolves all of the rational inconsistencies of time travel theory whilst remaining consistent with the scientifically verified empirical data. It shows how the “temporal” descrepancies in objects in different states of acceleration can exist without having to concede the causal, practical, physical existence of time.
The next problem with the time travel theory is that time always sums to ONE when measured against itself in comparisons of relative temporal frames of reference. Now, I know that this may seem obvious, as time, being a continuum, is, of itself, in possession of no temporal value (that is, time is, itself, necessarily TIMELESS), and therefore is, of itself, infinite. And of course when you divide time’s infinity into RELATIVE values, these values must always sum (return) to the infinite ONE of time’s own “temporal” value. So relative comparisons of temporal frames of reference between objects don’t actually imply ANY changes to time, itself. And if time itself doesn’t change with changes in temporal frames of reference between objects accelerating at different rates, because these changes are relative, then the temporal differences measured between them don’t actually have ANYTHING TO DO WITH TIME. Traveling through time doesn’t produce any changes in the timeline, itself. So how do we assert that time has changed for each object relative to one another if time hasn’t actually changed at all? As soon as we attempt to measure temporal changes utterly independent of the timeline we have contradicted ourselves. Time is exactly the same for all objects ALL the time, because time cannot change. All temporal “changes” are, by the theory’s OWN ADMISSION, a function NOT of time but of the relative position of the reference. There are only “temporal” changes when we make time RELATIVE TO AN OBJECT said to be “in time”. Thus, time travel has nothing to do with time and everything to do with how we humans ABSTRACTLY define a relative difference between objects. That ABSTRACTION is called “time”; time is not a thing, itself. Like “speed”, or “direction”, or “weight”, etc. etc. it’s a concept humans use to cognitively organize their environment.
Person A travels away at light speed from planet X on which remains person B. He returns after five years to discover that person B has aged 20 years. But let’s not focus on person A. Let’s shift our attention to B. Is it possible that he, like A, can be said to have “time traveled”? Why yes it is. With respect to the relativity of time, the temporal comparison between A and B is likewise relative. Which means that to the same degree A has “time traveled” to the past with respect to B, B has “time traveled” to the FUTURE with respect to A. If time is our plumbline, and time is relative, then this must be the case. It cannot be any other way.
Let’s speak non-relatively for a second. From the point of view of A and B independent of each other, time has passed equally. That is, from their own independent frame of reference nothing has changed…time has passed the same as it always has. They are comfortably ensconced in their “perpetual present”. It is only when the relative comparison is made are there any temporal differences noted. So, this being the case…that is, the fact that time is only RELATIVELY different and not FUNDAMENTALLY different means that if person A has traveled to the future, and the change in time is INEXORABLY attached to the position of B, then person B must have traveled to the past in equal measure. The temporal relationship is proportionally inverse and fundamentally related. As one travels to the future the other travels equally to the past. Person A has gained time relative to person B, and B has lost time relative to A. Thus, despite the fact that A is the one who traveled at the speed of light, BOTH A and B have “time traveled”.
So the only way to “prove” time travel is to make a relative comparison, but as soon as we do that we must accept that both A and B have traveled in equal but inverse degrees, which means that time, on the whole, itself, hasn’t changed at all. Time is absolute. It, of itself, just IS. IT is constant; the change is purely the observer’s perception. Like an hour glass, the sand can shift from one side to the other, but the amount of sand remains constant. Any “change” is purely an abstraction. There is no OBJECTIVE change in how much sand is in the hour glass at any given moment. The sand itself just IS.
Time travel theory doesn’t prove the existence of time, time’s existence being implicit in the assertion that time can be traveled. Time is simply an abstract, mathematical construct spawned from man’s mind, as a function of the mind’s unique and extraordinary powers of conceptualization.