Time Reborn and the Location of Time

  • Thread starter wmikewells
  • Start date
  • Tags
    Time
In summary, the author is saying that in a quantum universe where every particle is potentially one step away from every other particle, there is a universal time because everything is at the same place.
  • #1
wmikewells
91
0
I am toward the end of reading Smolin's Time Reborn for the second time, and it occurred to me that there was a missing piece. There is very little mention of where time exists. If time is real, I would think that it exists at some point or within some volume. I do not wish to point out a shortcoming of the book. I was just wondering if someone could elucidate that point for me.

The only parts that I could find that came close were on the following pages:

Chapt. 11 Page 129 - If we are to deduce predictions from the theory, it must establish how many universes have such-and-such properties at each moment of time. This time must be meaningful not only throughout each universe but across the whole population. So we need a notion of time that gives us a picture of simultaneity within each universe and across that population.

Chapt. Page 249 - Time is the most real aspect of our perception of the world. Everything that is true and real is such in a moment that is one of a succession of moments.

Given these quotes, I can only come up with a couple of interpretations that make sense to me:

1. Time exists everywhere and at every point in the universe (or multiple universes if natural selection cosmology is true).
2. Time does not have a location since it is what everything occurs in and therefore defines location.

These interpretations might be mutually exclusive, but I can't say why just yet. It may be that I missed further clarification in the book (since some of the points went over my head). Or it may be the case that this question is still an open issue to be determined by the theory beyond quantum mechanics.

If someone could shed some light on this, it would be greatly appreciated. Please keep your explanations high level if possible.
 
Physics news on Phys.org
  • #2
I missed a quote that makes sense of where time is. I don't know how I missed it.

Chapter 13 Page 171 - As noted, one quantity not allowed to change when you expand and shrink scales is the overall volume of the universe at each time. This makes the overall size of the universe and its expansion meaningful, and this can be taken for the universal physical clock. Time has been re-discovered.

The universe taken as a whole is a huge clock. Time exists everywhere and each point. That is some pretty heavy metaphysical baggage for such a simple statement.
 
  • #3
And I am not sure, but I also think the book posits that the universe is a big clock because it is composed of a bunch of smaller, synchronized clocks (residing at each node or particle in a quantum-graphity model).

Chapter 15 Page 191 - But in a quantum universe where every particle is potentially one step away from every other particle, everything is essentially "at the same place." In such a model, there's no problem synchronizing clocks, so there is a universal time.
 

FAQ: Time Reborn and the Location of Time

What is the concept of time reborn?

The concept of time reborn is a theory proposed by physicist Lee Smolin that suggests time is not a fundamental feature of the universe, but rather emerges from the physical laws and processes that govern it. This theory challenges the traditional view of time as a fixed, linear dimension and instead proposes that time is dynamic and changes as the universe evolves.

How does the location of time play a role in this theory?

The location of time is a central aspect of the time reborn theory. It suggests that time is not a separate entity from the physical world, but rather a part of it. This means that time is not something that exists outside of the universe, but rather is embedded within it, and is affected by the laws and processes that govern the universe.

What evidence supports the idea of time reborn?

One of the main pieces of evidence for time reborn is the concept of quantum gravity, which suggests that the fabric of space and time is not continuous, but rather made up of tiny, discrete units. This supports the idea that time is not a continuous flow, but rather a series of discrete moments that are constantly being created and destroyed.

How does time reborn relate to the concept of time travel?

The concept of time reborn challenges the traditional view of time as a fixed, linear dimension, which has implications for the possibility of time travel. If time is not fixed and can change, it opens up the possibility of traveling to different points in time. However, this theory also suggests that time travel may not be as straightforward as it is often portrayed in science fiction.

What implications does time reborn have for our understanding of the universe?

The idea of time reborn has significant implications for our understanding of the universe. It challenges the traditional view of time as a fixed, linear dimension and suggests that time is a dynamic and ever-changing aspect of the universe. This has implications for our understanding of everything from the origins of the universe to the behavior of black holes. It also raises questions about the nature of reality and our place within the universe.

Similar threads

Replies
11
Views
3K
Replies
4
Views
2K
Replies
32
Views
1K
Replies
5
Views
1K
Replies
8
Views
2K
Replies
24
Views
2K
Replies
57
Views
3K
Back
Top