The Sum of Awe
Brought to you by the moment that spacetime began.
Do all moments of time always physically exist?
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If time is a dimension, does the past and future exist physically still?
- Thread starter The Sum of Awe
- Start date
From what I've read and understand, yes.
you're just experiencing a slice of it
How could it be tested?
Twilight Hue
Twilight, not bright nor dark, good nor bad.
They are all eaten by the Langoliers. ;0]
syo
Well-Known Member
No. It depends on the objects involved.
Secret Chief
nirvana is samsara
Does time involve the physical?
syo
Well-Known Member
Yes. But which physical.
Secret Chief
nirvana is samsara
There remain questions about time, gravity and quanta. We don't have a quantum theory of gravity, and it is known in Physics that one is needed. Currently two possible theories getting attention are String Theory and Loop Quantum Gravity. These are not true theories yet. They are more like mathematical constructs that are hypothesis to explain phenomena, and its hard to test them. If we can't test them, then they cannot become scientific theories despite the word 'Theory' in String Theory.
Twilight Hue
Twilight, not bright nor dark, good nor bad.
Time isn't a thing. It's a measurement.
The Sum of Awe
Brought to you by the moment that spacetime began.
A measurement of duration, right? In a similar way that space is a measurement of distance. All things physically exist in width, length, and height, which are measurements. So what’s the difference?
The Sum of Awe
Brought to you by the moment that spacetime began.
I would say so, it’s the measurement of physical things.
The Sum of Awe
Brought to you by the moment that spacetime began.
That’s a good question. I suppose there is no way.
Twilight Hue
Twilight, not bright nor dark, good nor bad.
You can't pinpoint a true beginning or ending for time.
Just a defacto 'start' and 'end' making time a sliding scale limited to our applications where the measurements are of use. .
Heyo
Veteran Member
There is a hypothesis called "B Theory of Time". According to that hypothesis time is like a book or a film. It all exists physically but you are only experiencing it one frame at a time. This is in full accord with the theories of relativity but conflict with quantum theory.
The consequence of B theory is determinism. The future already exists, you can't change it.
The Sum of Awe
Brought to you by the moment that spacetime began.
I have always thought relativity, as I understand it, made more sense as a model for time space and gravity than QM does.
Heyo
Veteran Member
Yes, it's pretty straight forward and simple but:
1. I don't like it
2. QM seems to hint at a basically stochastic universe.
The Sum of Awe
Brought to you by the moment that spacetime began.
Why is the last one attractive to you?