Timeless GR

What point?

This thread concerns the misnomer of an hypothesis which is presented as fact.

I question you both , Grumpy and pad

You lack the depth of thought towards what time actually is , time is about dynamics

Now , why does the baby develop ?
 
I question you both , Grumpy and pad

You lack the depth of thought towards what time actually is , time is about dynamics

Now , why does the baby develop ?

See post 259.
If that doesn't fit with your obvious agenda and baggage, then ask another question.
 
See post 259.
If that doesn't fit with your obvious agenda and baggage, then ask another question.

Your post #259 is so lacking depth of the babies development ,

No other question needs to be asked

Why does the baby develop ? Delve into the cell biology of the child , is that a big enough hint for you ?
 
Your post #259 is so lacking depth of the babies development ,

No other question needs to be asked

Why does the baby develop ? Delve into the cell biology of the child , is that a big enough hint for you ?

:shrug:

You are in the wrong ball park.
If it wasn't for time, there would be no cell biology, no baby, no Earth, no solar system, no Universe/space/time, and no BB.
 
:shrug:

You are in the wrong ball park.
If it wasn't for time, there would be no cell biology, no baby, no Earth, no solar system, no Universe/space/time, and no BB.

Yet you have not shown any evidence at all , that time by itself has any efficacy upon any object
 
Not only does river believe anything he wants to believe, but he disbelieves anything he doesn't like.
 
Yet you have not shown any evidence at all , that time by itself has any efficacy upon any object

What do you mean "time by itself"? Do you have a concept of space and time existing, but NO OBJECTS? No light? No mass?

I think you are conceiving of an impossibility in your mind. Objects exist. There is no possibility of objects not existing.
 
Someone said here, Einstein said ''space-time-matter-energy where all the same thing.''

Actually, Einstein never said that, or if he did, he later refined it. He later said after completing his GR that there was no way to define time without matter fields in the theory. So he never actually said that space, time, energy and matter was a straight forward equivalence, instead, time is emergent with matter. So the OP has a point, how do you describe time without matter being around during the beginning?

Well, since matter exists in our universe I guess it is a moot point.

edit to add: after the big bang before the existence of matter there was energy, which also produces a gravitational field so again the point is moot.

Before the big bang I guess there was no energy or mass so no time - I can live with that.:shrug:
 
It's anything but moot I'd say. If in GR you can't describe time without matter, then if the universe didn't have matter to begin with, how do you define moving clocks inside the universe?

What it would be saying is relativity cannot describe time without matter fields.

No one even needs to mention gravity, mentioning gravity is moot, because energy is gravitating and so is matter. It's about how you define time in GR. Einstein said you can't without matter within the context of GR.

Ok. There has always been matter and/or energy in our universe so there has always been time in the context of GR.
 
No, matter didn't appear until electroweak symmetry breaking, this was after a Planck Epoch and an electrostrong epoch, during which time only radiation fields existed.

This was known as the radiation epoch.

Then matter appears. Before this, relativity cannot consistently talk about ''time.''

In any relativistic concept. Einstein makes that clear when he said time is unthinkable without matter.

Oh for crying out loud, are you yet another incarnation of rekui?

He let's try the Rekui test. Are you the same person as the poster Rekui who was banned?
 
Legolongolas

He later said after completing his GR that there was no way to define time without matter fields in the theory.

Are you another who is of the opinion that defining something has anything at all to do with that something's existence? Can you not tell the difference between measurement and existence? Yes, we use events(matter, energy, movement, acceleration)to DEFINE time, but the time exists whether it is possible to detect and define it or not. In fact time is so fundamental that it is part of the spacetime manifold that is our Universe. Time is, events might be(the Universe is mostly empty spacetime). We need events to measure, time does not need events to continue to pass. In fact it passes at it's maximum rate in the ABSENCE of events(it is the least dilated under those conditions, which are never absolute, so no absolute maximum is possible). Don't make the mistake of thinking measuring something causes it's existence. The map(the measurement)is not the thing being measured(time), it is only a construct that describes the reality.

So he never actually said that space, time, energy and matter was a straight forward equivalence, instead, time is emergent with matter.

No, time is emergent from the Big Bang, in the form of spacetime. Matter affects time, as does speed and acceleration(it affects space as well), so they are all interconnected. But time for events to occur within and space where those events occur exist independently of whether they currently have events occurring within that spacetime. The only thing that emerges due to events is our ability to measure time, not it's existence.

Grumpy:cool:
 
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