Time travel is impossible because time is not real

a reply to: Itisnowagain

Just in case you missed it

a reply to: Itisnowagain

This is interesting

NASA Announces Results of Epic Space-Time Experiment

science.nasa.gov...

Time and space, according to Einstein's theories of relativity, are woven together, forming a four-dimensional fabric called "space-time." The mass of Earth dimples this fabric, much like a heavy person sitting in the middle of a trampoline. Gravity, says Einstein, is simply the motion of objects following the curvaceous lines of the dimple.


Snip

The results of Gravity Probe B give physicists renewed confidence that the strange predictions of Einstein's theory are indeed correct, and that these predictions may be applied elsewhere. The type of spacetime vortex that exists around Earth is duplicated and magnified elsewhere in the cosmos--around massive neutron stars, black holes, and active galactic nuclei.

Now? What theory do you have backed by actual experimentation? Or you just have your opinion, and you willfully being combative?

a reply to: neutronflux

originally posted by: Itisnowagain
a reply to: neutronflux
Neither....
You are not in a science forum!

What forum is this thread posted in again?

a reply to: neutronflux
Sorry... I don't deal with theories.
Direct experience is the way.... not knowledge from books or hearsay.

originally posted by: Itisnowagain
a reply to: neutronflux

Not watching video if you cannot take the time to state a credible argument with supporting and cited evidence.

originally posted by: neutronflux

originally posted by: Itisnowagain
a reply to: neutronflux
Neither....
You are not in a science forum!

What forum is this thread posted in again?

Oh whoops... I am in the wrong forum.

a reply to: neutronflux
Time travel is possible..... is this true?

originally posted by: Itisnowagain
a reply to: neutronflux
Time travel is possible..... is this true?

Not if time isn’t real? Then there is nothing to travel.

Or you talking about quantum physics?

Or you talking about the theory of relativity?

Or you can travel back in time to create a post before this post to prove time travel is real?

Since 1905 it's known that time and space are equally real, hence space-time.
Minkowski and Einstein gave us this knowledge and it has been proving to be correct ever since.
Both are considered part of a greater whole, see "four vector space-time" for a description.

The basic idea is that everything moves at a constant speed (speed of light) in space-time.
If you have zero velocity in space you are moving at the fastest speed in time.
As you increase velocity in space your speed through the time dimension slows.

Eventually close to light speed your time is almost zero.

For massless particles like photons which can actually travel at light speed their speed in time is zero.
So even though a photon moves through space there is no movement in time at all.

originally posted by: joelr
Since 1905 it's known that time and space are equally real, hence space-time.
Minkowski and Einstein gave us this knowledge and it has been proving to be correct ever since.
Both are considered part of a greater whole, see "four vector space-time" for a description.

The basic idea is that everything moves at a constant speed (speed of light) in space-time.
If you have zero velocity in space you are moving at the fastest speed in time.
As you increase velocity in space your speed through the time dimension slows.

Eventually close to light speed your time is almost zero.

Yes, yes, and yes.

For massless particles like photons which can actually travel at light speed their speed in time is zero.
So even though a photon moves through space there is no movement in time at all.

No, No.

Does time stop for a photon?

Does time stop for a photon?. . . It is really not possible to make sense of such questions and any attempt to do so is bound to lead to paradoxes. There are no inertial reference frames in which the photon is at rest so it is hopeless to try to imagine what it would be like in one. Photons do not have experiences. There is no sense in saying that time stops when you go at the speed of light. This is not a failing of the theory of relativity. There are no inconsistencies revealed by these questions. They just don't make sense.

Since there is no valid reference frame for a photon, it is impossible to apply the theory of relativity to calculate the passage of time in a photon's reference frame, there's no such thing. You can try to think about the paradoxes which can be created by making the false assumption that a photon can have a valid reference frame. Relativity is a successful idea, but a photon not experiencing time is not a successful idea, and is not part of relativity.

I think time is a realization in relativity from the microscopic to the macroscopic. Once one become's aware of what's around themself then it becomes possible to be aware of time. Of course things get old and wear down whether you are aware of it or not due to natural processes.

a reply to: lostbook
Look around now.... now find this thing called time.
Show me time.

All you will find is movement occuring presently.

a reply to: neutronflux

I feel time isn't what we anthropologically think it to be...

We may like to look at the ancient scriptures for clues...

There is only the 'Now'. Our perception strings it all along in a consecutive linear manner so our human egoistic waking consciousness can view it as our life's 'timeline'.

When in reality I think everything may be happening all at once, instantaneously, in the 'Now'...

But who 'really' knows? I don't think anyone does - we'll find out when we pass - if we pass! Though I've always wondered if what we seek in life we find in death?

SnF for encouraging discussion!

a reply to: fluff007
What if there is no one to die?

Now is all there is.... it appears as a movie.... just a movie with apparent bodies.

Know thyself is what is occuring.... a self aware screen of existence.

The screen is the true reality because it never comes or goes.....but is overlooked.

a reply to: neutronflux

It really is a stupid argument to say time is an illusion lol.. fact is that it is measurable and therefore can not be an illusion lol. Now, here is the more serious question, why is our time linear.. you see it every day... your nails grow, your hair grows, time... you can argue all you want to about it but if you still say it does not exist then you really are the one living in an illusion in your mind lol... now, why is it linear... hmmmm

Now, that is the question...... what is your answer.....

Oh, and for the crazy japanese american physicist in new york, hello, we already know time travel is possible and we also know where to get the power to achieve it... they are working on it now... and you had that part right, dark matter..

originally posted by: dlbott
a reply to: neutronflux

It really is a stupid argument to say time is an illusion lol.. fact is that it is measurable and therefore can not be an illusion lol.

You are here now...... now get a tape measure and place it here now and and stretch it to another time and read what it has measured and post the reading.

you can argue all you want to about it but if you still say it does not exist then you really are the one living in an illusion in your mind lol...

Exactly...... you need the 'idea' of time to be able exist as a separate thing.

You (as a separate thing) is an illusion that occurs because mind invents and believes there is time.

The separate you lives in time.
No thing is separate presently.

Of course time travel is real, your doing it right now!

originally posted by: 00018GE
Of course time travel is real, your doing it right now!

Are you actually experiencing travelling through time or is it just what you have been led to believe?

You will never, ever escape from the present.
Here and now is all you will ever experience.

You never move..... just the scenery moves.

Peter Brown examines what is actually occuring in the video above.

a reply to: Itisnowagain

So, how do time crystals work?