Infinite Past and Future: Surprising Consequences of Time Dilation

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The discussion revolves around the implications of time dilation and the concept of different frames of reference in spacetime. The original post suggests that if one frame can be perceived as the future in one context, then there must exist a frame representing an infinite past and future. Participants clarify that while frames of reference can shift, they encompass the entirety of space and time, making the idea of infinite past and future impractical. The conversation highlights the complexities of understanding time in relation to different frames. Overall, the notion of infinite past and future raises intriguing questions but faces significant practical challenges.
GoldNow
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From the equation of time dilation we can deduce a consequence that surprise me . If we know that in our frame system is future and in other frame system is past , and from pointview of the other frame system must be another frame system that is past from our pointview and so on from the equation t=t0\times\gamma where \gamma is einsteinian invariant we can get the following consequence : In our universe must be a frame system that is the infinite past and future. What do you think ? What is wrong and right on this idea ?
 
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Hi GoldNow! :smile:

I'm finding it difficult to understand what you're saying, but if you mean that one frame can be in the past or future of another frame, that's not correct.

A frame covers the whole of space and time.

Two different frames cover the whole of space and time differently, like two different coordinate grids.
 
tiny-tim said:
Two different frames cover the whole of space and time differently, like two different coordinate grids.
Yes, but in flat spacetime the origin certainly can be shifted as far into the future or the past as you might like. I am not sure if that is what the OP intended or not, it is hard to read.
 
GoldNow said:
From the equation of time dilation we can deduce a consequence that surprise me . If we know that in our frame system is future and in other frame system is past , and from pointview of the other frame system must be another frame system that is past from our pointview and so on from the equation t=t0\times\gamma where \gamma is einsteinian invariant we can get the following consequence : In our universe must be a frame system that is the infinite past and future. What do you think ? What is wrong and right on this idea ?

Not wrong but utterly impractical.
 

Thread 'EPR revisited'

In an inertial frame of reference (IFR), there are two fixed points, A and B, which share an entangled state $$ \frac{1}{\sqrt{2}}(|0>_A|1>_B+|1>_A|0>_B) $$ At point A, a measurement is made. The state then collapses to $$ |a>_A|b>_B, \{a,b\}=\{0,1\} $$ We assume that A has the state ##|a>_A## and B has ##|b>_B## simultaneously, i.e., when their synchronized clocks both read time T However, in other inertial frames, due to the relativity of simultaneity, the moment when B has ##|b>_B##...
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