Is time physical?

[seer]

Time is the same thing as space in B theory. It's an additional axis.

Actually not all physicists believe time are space are the same thing, that was mentioned in one of my links.

Was Einstein wrong? The case against space-time theory

https://www.space.com/end-of-einstein-space-time

[Sparko]

Right locations, different locations but not different times. Time does not move or change when it is static.

yes different times. If you had a time machine, in the block universe you could go back to 1953. It is still there. In the A-theory universe you cannot. It no longer exists. There are no different times in the A-thoery universe, only "now". But all times exist in the B-theory universe.

[seer]

yes different times. If you had a time machine, in the block universe you could go back to 1953. It is still there. In the A-theory universe you cannot. It no longer exists. There are no different times in the A-thoery universe, only "now". But all times exist in the B-theory universe.

Good grief Sparko. You can only call it 1953 because of A theory, there are no time distinctions in B Theory. And you are correct 1953 is no longer here, just as the future does not yet exist. There is only now, presently, but those past times did exist. So in A theory time(s) are possible with flow.

[Sparko]

Good grief Sparko. You can only call it 1953 because of A theory, there are no time distinctions in B Theory. And you are correct 1953 is no longer here, just as the future does not yet exist. There is only now, presently, but those past times did exist. So in A theory time(s) are possible with flow.

We call it 1953, 2012 or 2022 because that is how we mark time. Whether it flows or not.

2012 was 10 years ago no matter what theory you use. But in B-theory 2012 is still there, and in A-theory it is not. But the time period/location still exists. Not sure what is going on in your noggin but it seems completely wrong in so many ways. Time is a topic that is very frustrating to discuss with you.

[Machinist]

Actually not all physicists believe time are space are the same thing, that was mentioned in one of my links.

Was Einstein wrong? The case against space-time theory

https://www.space.com/end-of-einstein-space-time

All B theorists do though, don't they?

That's an interesting article btw. Thanks. Don't know what to think now( like I knew before ).

[Stoic]

Physical locations are relative to other physical locations, but again there are not different "times" there is only one static time in B theory, time is not plural. The only way around that is to invoke A theory, but that relies on flow.

Physical location is static in the block universe, but there are many locations. Same thing with time. (The word "times" can be understood as "values of time". Time has many values, just as X, Y, and Z have many values.)

[seer]

All B theorists do though, don't they?

That's an interesting article btw. Thanks. Don't know what to think now( like I knew before ).

Yes, but B theory relies on special relativity, and when it comes to the nature of time quantum mechanics is inconsistent with B theory. The point being, as I have been saying, we really don't have a good grasp on what time is.

[seer]

Physical location is static in the block universe, but there are many locations. Same thing with time. (The word "times" can be understood as "values of time". Time has many values, just as X, Y, and Z have many values.)

Really, what is the value of 1953 as opposed to 2022?

[seer]

We call it 1953, 2012 or 2022 because that is how we mark time. Whether it flows or not.

2012 was 10 years ago no matter what theory you use. But in B-theory 2012 is still there, and in A-theory it is not. But the time period/location still exists. Not sure what is going on in your noggin but it seems completely wrong in so many ways. Time is a topic that is very frustrating to discuss with you.

I don't care that the past doesn't exist, and we can mark time as we will, but those distinctions don't actually exist in B theory when time is static. Which I thought you already agreed with...

[Sparko]

I don't care that the past doesn't exist, and we can mark time as we will, but those distinctions don't actually exist in B theory when time is static. Which I thought you already agreed with...

A film is static but it has different "times" in it, different frames that show different events and times. A road is static but has different locations along it. Static doesn't mean that different times don't exist, that 1953 doesn't exist or 2022 or 4098. So yes, those distinctions actually exist in B-theory.

[Sparko]

Actually not all physicists believe time are space are the same thing, that was mentioned in one of my links.

Was Einstein wrong? The case against space-time theory

https://www.space.com/end-of-einstein-space-time

If you read that article they are still calling it "space-time" when talking about quantum physics. The thing they disagree on is the nature of space time as a smooth fabric distorted by gravity, or some sort of "pixel" like loops.

[seer]

A film is static but it has different "times" in it, different frames that show different events and times. A road is static but has different locations along it. Static doesn't mean that different times don't exist, that 1953 doesn't exist or 2022 or 4098. So yes, those distinctions actually exist in B-theory.

Good grief! They are not different times. They are different locations! Old seer did not come after baby seer in the block universe. Both frames existed side by side, and always have - there is no time distinction.

[seer]

If you read that article they are still calling it "space-time" when talking about quantum physics. The thing they disagree on is the nature of space time as a smooth fabric distorted by gravity, or some sort of "pixel" like loops.

Yes, but static time does not work with quantum physics, there is another link in this thread that explains that.

If physicists are going to solve the mystery of time, they have to grapple not just with the space-time continuum of Einstein, but also with the knowledge that the universe is fundamentally quantum, ruled by chance and uncertainty. Quantum theory paints a very different picture of time than Einstein’s theory. “Our two big theories on physics, quantum theory and general relativity, make different statements,” said Renner. He and several other physicists said thisinconsistency underlies the struggle to find a quantum theory of gravity—a description of the quantum origin of space-time—and to understand why the Big Bang happened. “If I look at where we have paradoxes and what problems we have, in the end they always boil down to this notion of time.”

Time in quantum mechanics is rigid, not bendy and intertwined with the dimensions of space as in relativity. Furthermore, measurements of quantum systems “make time in quantum mechanics irreversible, whereas otherwise the theory is completely reversible,” said Renner. “So time plays a role in this thing that we still don’t really understand.”

https://theologyweb.com/campus/forum...hysical/page43

Time is not reversible in the quantum world, the past is gone, and time is not bendy and intertwined with the dimensions of space.

[Sparko]

Good grief! They are not different times. They are different locations! Old seer did not come after baby seer in the block universe. Both frames existed side by side, and always have - there is no time distinction.

Yes there is time distinction. Time is a dimension. "Location" is an analogy to explain how different time periods exist along the dimension of time. Yeesh. If there is no distinction why can't I see baby Seer in 2022?

[seer]

Yes there is time distinction. Time is a dimension. "Location" is an analogy to explain how different time periods exist along the dimension of time. Yeesh. If there is no distinction why can't I see baby Seer in 2022?

Sparko , in the Block universe does dead seer exist as we speak? And the reason you can't see baby seer is because of a different inaccessible location - or because B theory is bunk.