Regression of Universe: Is Time Repeatable?

In summary, the conversation discusses the concept of determinism and whether the Universe would play out exactly the same way if all particles were in the same state as they were two years ago. The consensus is that while there may be some similarities, the sensitive nature of quantum mechanics and statistical effects would result in some differences in subsequent events. However, it is acknowledged that this is based on an assumption that the underlying physics of the Universe is statistical, and there is a possibility that there may be an underlying deterministic structure.
  • #1
petrushkagoogol
28
4
If every particle of the Universe was made to occupy the state at which it was 2 years ago, would there be an action replay of events from (T-2) yrs to T ? Or would subsequent events be different ?:rolleyes:
 
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  • #2
Short answer: nobody knows.
This is part of the problem of determinism - and there is currently no solution.
The usual consensus is along the lines that the Universe will not play out exactly the same way twice from the same initial conditions ... this is because of some very sensitive statistical/quantum mechanics effects at the fundamental particle level. But it will be broadly similar.
However, this is an opinion based on an assumption that the underlying physics of the Universe is statistical in nature.
That may not be true: there may be an underlying structure that makes everything deterministic again.
 
  • #3
petrushkagoogol said:
If every particle of the Universe was made to occupy the state at which it was 2 years ago
How can you define "now" without reference to the state of the universe and the particles in it?

This is a purely philosophical question, physics cannot answer philosophical questions and we are not a philosophy forum.
 
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What is the Regression of Universe?

The Regression of Universe theory suggests that the expansion of the universe will eventually reverse, causing all matter and energy to contract back into a single point. This is based on the observation that the universe seems to be expanding at an accelerating rate.

How does the Regression of Universe tie in with the concept of time?

The concept of time is closely linked to the Regression of Universe theory. The theory proposes that time is cyclical and that the universe goes through periods of expansion and contraction, repeating itself indefinitely.

Is time truly repeatable in the Regression of Universe theory?

The concept of time repeating itself is a fundamental aspect of the Regression of Universe theory. However, the repetition of time does not necessarily mean that every event will happen exactly the same way. There may be variations or differences in each cycle of time.

What evidence supports the Regression of Universe theory?

One of the main pieces of evidence for the Regression of Universe theory is the observation that the universe is expanding at an accelerating rate. This suggests that there is a force at work pushing everything apart, and the most likely explanation is that this force will eventually reverse and cause the universe to contract back into a single point.

What are the implications of the Regression of Universe theory?

If the Regression of Universe theory is correct, it means that the universe has been repeating itself for an infinite amount of time. This has profound implications for the concepts of fate and free will, as well as the ultimate fate of the universe and all life within it.

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