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Which leads to the obvious question...how do you know that the other three dimensions aren't illusions as well?Time is not an illusion, it’s the fourth dimension.
Time is not an illusion, it’s the fourth dimension.
Time has physical properties, which is why time Is affected by velocity, and even by gravity.
Time is not an illusion, it’s the fourth dimension.
Time has physical properties, which is why time Is affected by velocity, and even by gravity.
And this too may be an illusion.The speed at which information may be propagated has an upper limit, implying change can only happen so fast
you can't measure an expanding universe ... time is not physical ... can you hold it in your hand?
You can call time the fourth dimension if you want .... but you can't measure the cosmos by it because the cosmos is continuously expanding.
Time and space are non-matter existences. They don't exist in physical state. Therefore, unlike matter existence, they don't have physical properties.
Without observations, without the discovery of a wormhole allowing a direct observation into another time within a stateless universe, that time is a dimension remains a baseless assertion.
Which leads to the obvious question...how do you know that the other three dimensions aren't illusions as well?
How many dimensions does light experience?
Being an epistemological solipsist, I would question both of the above assertions.To paraphrase Descartes: it exists, therefore it is.
If you think reality is an illusion, beat your head against a wall, and you will know it’s not very quickly.
Einstein disagreed with you:
Einstein's general theory of relativity established time as a physical thing: it is part of space-time, the gravitational field produced by massive objects. The presence of mass warps space-time, with the result that time passes more slowly close to a massive body such as Earth.Apr 18, 2018
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Why now doesn’t exist, and other strange facts about time | New Scientist
It doesn't. Einstein's relativity helps to explain why time is experienced differently, but it does not require that an object "slip out" of the present state (to cease to exist relatively) of a stateful universe.
A stateful universe upholds Hawking's choronology protection conjecture. It explains why no time travellers showed for MIT's time traveller party, which I believe is still being advertised and will be indefinitely.
Time travel would take an unbelievable amount of energy, and any time traveler would have to take all the necessary equipment and power source with them, to be able to return.
Just as it would take a fantastic amount of energy to warp the hundreds of light years of space to travel to distant star systems with a warp drive, per Star Trek.
The fact is that energy, matter, time, and space are all essentially the same, according to physics.
It doesn't. Einstein's relativity helps to explain why time is experienced differently, but it does not require that an object "slip out" of the present state (to cease to exist relatively) of a stateful universe.
A stateful universe upholds Hawking's choronology protection conjecture. It explains why no time travellers showed for MIT's time traveller party, which I believe is still being advertised and will be indefinitely.
Hawking, the same “genius” who wrote that because gravity exists, the universe was able to create itself?
It doesn't. Einstein's relativity helps to explain why time is experienced differently, but it does not require that an object "slip out" of the present state (to cease to exist relatively) of a stateful universe.
A stateful universe upholds Hawking's chronology protection conjecture. It explains why no time travellers showed for MIT's time traveller party, which I believe is still being advertised and will be indefinitely.
At the risk of displaying my ignorance again, could you please give me a quick explanation of what you mean by "stateful".A stateful universe upholds Hawking's chronology protection conjecture. It explains why no time travellers showed for MIT's time traveller party, which I believe is still being advertised and will be indefinitely.
At the risk of displaying my ignorance again, could you please give me a quick explanation of what you mean by "stateful".
Whether space-time and time are real or not is a debate physicists have been having for over a century but I suspect the pendulum are swung strongly towards both concepts being real.
For me there is no doubt both are very real.
The evidence comes from quantum mechanics supported by relativity.
A common misconception is the incompatibility of quantum mechanics with relativity; this is true with the scale dependent theory of general relativity but not so with special relativity.
The Schrodinger equation is based on non relativistic quantum mechanics, the Klein Gordon equation is the relativistic version of the Schrodinger equation incorporating space-time into the equation.
The Klein Gordon equation was originally a nightmare for physicists; it predicted negative probabilities and negative energies.
The latter provided a clue to antimatter where the energy levels are below a ground level through an earlier attempt of combining special relativity and quantum mechanics through the Dirac equation.
The negative probabilities problem was solved by considering ψ as being a field in the Klein Gordon equation whereas in the Schrodinger equation it is a wavefunction.
The field is an operator which can create and destroy particles.
From this arose quantum field theories where a vacuum is space-time in the lowest energy level and with it came a prediction space-time can exert pressure which was confirmed by the Casimir effect.
It’s very difficult to argue about space-time being a human construct when it can exert pressure.
The issue with time can be dealt with non relativistic quantum mechanics.
The Heisenberg uncertainty principle states;
ΔxΔp ≥ h/4π
h is Planck’s constant, Δx and Δp are the uncertainty in the measurements when the position and momentum mathematical operators X and P applied to the eigenvector |ψ> giving the eigenvalues x and p which are the measurements or observables according to the equations X|ψ> = x|ψ> and P|ψ> = p|ψ> respectively.
The Heisenberg uncertainty principle can be expressed differently using energy and time.
ΔEΔt ≥ h/4π
Here E is the eigenvalue of the Hamiltonian operator H where H|ψ = E|ψ>.
There is a problem with t as there no mathematical operator T such that T|ψ> = t|ψ>.
t is not an uncertainty in the measurement but a time interval which depends on a physical process such as the energy level of an excited state depends on how long it is in that state.
This connection between energy and time makes it difficult to conclude time is simply a human construction.
Your response indicates this since it seems to bear no relevance to anything I said.For the life of me I don't know why you put so much effort into internet posts, but I for one am not going to try to deconstruct what you're trying to say.
There is a flaw in this argument; my post was not about pure mathematics but an example of applied mathematics in physics.Math is simply an axiomatic system. Axiomatic systems are grounded on axioms, postulates, and assumptions. Some of those assumptions are philosophical, and accidental.
Did I mention anywhere in my post about time travel or time dilation?The bottom line is, it doesn't matter what the math, proceeding from our assumptions says. For time travel to be possible, past or future must first exist so that it can be traveled to. Time dilation does not prove that this is the case because anything that undergoes time dilation doesn't fall out of the state of the present universe. These objects, observers or what have you, remain with us regardless of any perceptible difference in the passage of time.
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