Block universe Definition and 32 Threads

Presentism: This theory posits that only the present moment is real, and the past and future are simply constructs of human consciousness. According to presentism, the past no longer exists, and the future has not yet occurred. Eternalism/Block Universe Theory: This theory suggests that all...

This is just a rough estimate of what a simple bock universe might be to an observer in the red worldline on the left side, and what it is to an observer in one of the blue worldlines in the graph on the right side. In the graph on the left side, two blue objects moved past the red object very...

Hello, can somebody help me out please? just watched this video so far understood but if motion changes the now frame its logic if the alien cylcles to the guy sitting that his time is slower and the guys time will be in the future (time delitation). but when the alien is moving away how can...

Consider two observers, Alice and Bob, standing on the Earth together with synchronized clocks. Bob asks Alice, “Is this now?” to which Alice replies, “Yes, it is”. They are clearly both in the present moment. Bob climbs a mountain and some time later, due to the lower gravitational field...

I wonder how physicists who support this theory explain the increase of entropy?

The Block Universe Theory, based on Einstein's Relativity, says that past, present and future exist at the same "time", the universe is static, eternal, and things doesn't change, movement is an ilusion because you have memories from the past. But if the universe don't evolve does this imply...

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Usually questions I have of this nature are down to my limited understanding of the concepts, and this may be no different. Based on my understanding of the Block Universe interpretation of relativity, it appears to me as though there is a conflict between Bell tests and the Block Universe. To...

Just a heads up, this post is quite long. I've tried to be as detailed as possible from the outset because I find it can help avoid the need to clarify things later, or helps when clarifying things later. There is only one question posed at the end, but I think it might be useful to read the...

I find this subject fascinating. Einstein said the distinctions between past, present and future is just a persistent illusion. I was watching a special with Brian Greene and other Physicist who think we do live in a Block Universe and they explained it very well. Here's my question. Say there...

Hermann Minkowski (Einsteins math instructor and a mathematical physicist himself): The views of space and time which I wish to lay before you have sprung from the soil of experimental physics, and therein lies their strength. They are radical. Henceforth space by itself, and time by itself...

I have an image of the block universe that is probably similar to how many people view it, as a 4D non dynamical construct where the "present" is a slice of this block and this slice moves forward from the past to the future. Furthermore, depending on your relative velocity, your slice may be...

Einstein said, "The distinction between past, present and future is only an illusion, even if a stubborn one." That's my problem--that illusion is so vivid and stubborn. Paul Davies said in his book "About Time": There is only one rational conclusion to draw from the relative nature of...

Experimental violations of Bell's inequality (Alain Aspect, et al) proved beyond a shadow of doubt that local hidden variables do not exist. However, in a 1985 BBC interview, John S. Bell said there was one loophole in those experiments that would allow for determinism: non-local hidden...

Is there a scientific difference, if not, why bother with the block universe model given it is unintuitive?

PeterDonis submitted a new PF Insights post The Block Universe - Refuting a Common Argument Continue reading the Original PF Insights Post.

DaleSpam submitted a new PF Insights post PF's policy on Lorentz Ether Theory and Block Universe Continue reading the Original PF Insights Post.

I'm 13, so I was reading Discover and I read something about a "block universe" and I thought it was a bunch of hogwash... here is how I see it... Time is the same for everybody its just how people perceive it that makes people think its an illusion... any feedback? Thanks!

[Reposted from my PF blog] The "block universe" interpretation of SR has come up repeatedly in threads here on PF. Rather than link to them, I want to summarize the key argument that is made for the "block universe" being necessary, and then summarize the arguments I made in those threads to...

Does block universe mean that time and motion are illusions?

If each person exists in an unchanging state in the block universe, and the flow of time is an illusion caused by the way memory functions[1] (or by something else, the details are not the point), then how exactly does this sensation of 'now' work? Even if 'now' is a psychological illusion...

Hi. I did a quick search for threads on the block universe and came across one about the implications of the block universe. That was closed though because it was too philosophical. I don't really want to know about the implications of the block universe, I'm just wondering how physicsts...

I’m relatively new to Physics Forums, so please go easy on me guys. I’m trying to get an understanding of the so-called Block Universe concept and its implications, but I need help. I’m going to start out by articulating my current understanding, and then try to apply this understanding to...

Hi,guys,What is evidence against and for block universe theory?

Is the Growing Block Universe theory compatible with SR an GR?

block universe theory? Sorry everyone but I guess I just don't quite get the block universe theory. If the past, present, and future are all existing at the same time (me being born, me sitting in second grade, my death) then what would happen if I were to die in let's say 5 minutes.. What...

I think QMers may know something about this.

I am fascinated with this idea.

In special relativity the time of two events are relative. That means that one person's present can be construed as another person's past. this would seem to imply that past, present, and future all exist in block universe--in bloock time wherein we live in a frozen universe. Does this...

Hello there, Relativity implies that we live in a block universe where both the past and the future are pre-defined--they are alreay out there. Time is a fourth dimension, just like space, so it means it exists in both directions--both the past and the future. Has the paradox of "frozen...

Ellis on an "evolving block universe" (gr-qc/0605049) Here's an interesting article I just browsed through: gr-qc/0605049 Physics in the Real Universe: Time and Spacetime George F. R. Ellis The Block Universe idea, representing spacetime as a fixed whole, suggests the flow of time...