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Paradox-Free Time Travel is Mathematically Possible: Study
Sci-news ^ | 09/25/2020

Posted on 09/25/2020 9:15:31 PM PDT by BenLurkin

“Classical dynamics says if you know the state of a system at a particular time, this can tell us the entire history of the system,” said Germain Tobar, a student in the School of Mathematics and Physics at the University of Queensland.

“This has a wide range of applications, from allowing us to send rockets to other planets and modeling how fluids flow.”

“For example, if I know the current position and velocity of an object falling under the force of gravity, I can calculate where it will be at any time.”

“However, Einstein’s theory of general relativity predicts the existence of time loops or time travel — where an event can be both in the past and future of itself — theoretically turning the study of dynamics on its head.”

A unified theory that could reconcile both traditional dynamics and Einstein’s theory of relativity is the holy grail of physics.

“But the current science says both theories cannot both be true,” Tobar said.

“As physicists, we want to understand the Universe’s most basic, underlying laws and for years I’ve puzzled on how the science of dynamics can square with Einstein’s predictions.”

“I wondered: Is time travel mathematically possible?”

Tobar and his colleague, Dr. Fabio Costa from the Centre for Engineered Quantum Systems in the School of Mathematics and Physics at the University of Queensland, found a way to ‘square the numbers’ and their calculations could have fascinating consequences for science.

(Excerpt) Read more at sci-news.com ...


TOPICS: Miscellaneous
KEYWORDS: paradox; stringtheory; timetravel
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To: Long Jon No Silver
If the stories of how the conquistadors inadvertently decimated Native American populations via diseases are true, then a modern human going back in time could be very problematic.

You most likely would have to wear thick robes, keep at a distance from others, and act rather mysterious in order to discourage people from coming near.

Oh wait, that's pretty much Merlin's modus operandi. So...

41 posted on 09/25/2020 11:38:40 PM PDT by who_would_fardels_bear
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To: norcal joe

And maybe you could find the location of God if you knew all of that. But the never ending problem with such speculation is that it will always result in the same problem:

Need Input.


42 posted on 09/25/2020 11:39:40 PM PDT by Revel
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To: Revel

God is outside the material universe.


43 posted on 09/25/2020 11:40:52 PM PDT by norcal joe
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To: mlo

It’s great that a couple of you have said that. But we know your expertise in physics as much as we know these guys’ expertise in physics.

Forgive me if I go with the guys in the article :-)


44 posted on 09/26/2020 12:31:52 AM PDT by dp0622 (I DON'T KNOW WHAT TO DO ABO UT THE COVID GODFATHER, I DON'T KNOW WHAT TO DO. YOU CAN ACT LIKE A MAN!)
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To: hanamizu

In setting Einsteinian time coordinates, one also sets the coordinates for a place, not in Cartesian terms but in relative terms as to significant objects. Thus Einstein referred to space-time as both integral and relative. Or to put it another way, time travel equations are incomplete without also specifying the destination.


45 posted on 09/26/2020 12:45:19 AM PDT by Rockingham
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To: dp0622
It's not a matter of my expertise. It's a matter of saying basically wrong things even in the intro. For example...

“However, Einstein’s theory of general relativity predicts the existence of time loops or time travel — where an event can be both in the past and future of itself"

Relativity doesn't predict such things. It allows some behavior of time that we would find strange, but it doesn't require "time loops".

"A unified theory that could reconcile both traditional dynamics and Einstein’s theory of relativity is the holy grail of physics."

From context he's talking about "classical dynamics" or "traditional dynamics". There is no conflict between that and relativity.

“But the current science says both theories cannot both be true,” Tobar said."

The current science does not say that. As I said, there is no conflict between classical dynamics and relativity. He's confused.

The "conflict" that does exist is between relativity and quantum theory, although "conflict" is the wrong word. It's not that both can't be true. Both are true, as far as we can tell. The problem is that they are distinctly different theories. Each explains its domain, but they don't have anything in common. It's not a conflict, but it suggests that there's a deeper theory to cover everything.

This is all basic physics taught in entry level courses. If he's confused about this then I highly doubt he has anything really useful to say.

46 posted on 09/26/2020 12:49:49 AM PDT by mlo
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To: TonyM

“Now that would be a “Groundhog Day” scenario I would not mind exeriencing.”

While we are watching this, I hope it includes a replay of Stacy Abrams becoming the gubnar of GA.


47 posted on 09/26/2020 3:42:25 AM PDT by Susquehanna Patriot
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To: nickcarraway

Welcome and enjoy your stay.

I see you did not say what planet. Hhhmmmm, enteresting


48 posted on 09/26/2020 3:54:02 AM PDT by eartick (Stupidity is expecting the government that broke itself to go out and fix itself. Texan for TEXIT!)
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To: BenLurkin
Best explanation of why faster than light travel is impossible was furnished as an answer by my freshman physics professor.

As you approach the speed of light, your material body begins to convert from mass (matter) to energy ... that energy radiates out into the universe as if you are an antenna.

49 posted on 09/26/2020 3:55:42 AM PDT by dartuser
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To: hanamizu

Does there not have to be a “fixed point” of reference somewhere in the universe in order to measure time? Else, how does one know they actually returned to where they were in time?

To travel back in time, ... it seems all life processes would operate in reverse, cells decayed - restored, energy previously expended recovered to its original state, etc. Therefore, does not the professor have to prove first that there is no 2nd law of thermodynamics for this to work? Also, I would be interested in how the professor’s mathematical solution addresses the condition of temperature = “absolute zero”.

Other than that, I am going to get another cup of coffee and not try to tax my brain too much this early.


50 posted on 09/26/2020 4:04:05 AM PDT by Susquehanna Patriot
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To: Tunehead54

“[Other blogger] obviously [was] never been married.” LOL

... or divorced ...

The math professor should interview ex-spouses, especially those who were awarded support payments of any kind. He will find substantial evidence that travel back in time has been around for quite awhile and is well recognized by courts of jurisprudence.


51 posted on 09/26/2020 4:12:15 AM PDT by Susquehanna Patriot
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To: BenLurkin

Science Channel runs a show titled:

How the Universe Works, Time Travel.

I highly recommend it for anyone interested in TT. There are some newer interesting theories in the physics world that are discussed.


52 posted on 09/26/2020 4:20:31 AM PDT by mad_as_he$$
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To: BenLurkin
if I know the current position and velocity of an object falling under the force of gravity, I can calculate where it will be at any time.”

I thought that Chaos Theory (or one of those other cutely named theories) has declared this impossible - you can either know an object's position, or its velocity, but not both?

And I will say this. If they ever do invent time travel, if Bill Clinton thought his step daddy Roger Clinton was an @$$hole to him, wait until I start dating Virginia Blythe. :-)

53 posted on 09/26/2020 4:47:33 AM PDT by Hardastarboard (Three most annoying words on the internet - "Watch the video")
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To: Susquehanna Patriot

54 posted on 09/26/2020 4:53:58 AM PDT by Bratch (If liberty means anything at all, it means the right to tell people what they do not want to hear.)
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To: ProtectOurFreedom

Earlier, Jimmuh Catuh.


55 posted on 09/26/2020 5:19:41 AM PDT by wally_bert (Transmission tone, Selma)
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To: TBP

Time Trax used the parallel universe 200 years prior.


56 posted on 09/26/2020 5:20:46 AM PDT by wally_bert (Transmission tone, Selma)
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To: BenLurkin

It’s far easier than they present.

We live in a “flat consciousness society.”

Most people never develop their prefrontal cortex analytical thinking ability which is in the Beta frequency (neural oscillation or action potential firing rate) as measured in EEG’s.(about 14 to 40 Hz.)

There are oscillation rates far beyond this that range into the megahertz and gigahertz frequencies. This is how the mystics gain their abilities. Religions teach us how to do this.

Our perception of reality is a function of the frequency of consciousness from which we view it.

When we raise our consciousness above the Beta frequency we awaken and begin to perceive directly from our consciousness (external to our physical bodies) and are not restricted to our 5 senses. This is spiritual awakening or enlightenment.

Time is not just a function of the speed of light.

Time is a function of our frequency of consciousness divided by the speed of light. Time collapses as we tune to higher frequencies. This is how the prophets see into the future.

This is why a day in Heaven is like a thousand on earth.

Everyone can grow spiritually and achieve this. We are all equal in our potential.


57 posted on 09/26/2020 5:43:07 AM PDT by tired&retired (Blessings)
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To: tired&retired

Einstein’s failure to understand this created his error in his theory of relativity formula.


58 posted on 09/26/2020 5:45:08 AM PDT by tired&retired (Blessings)
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To: BenLurkin

I just did it...
Read the whole article and realized I had missed a couple key points and went back in time to re-read it for the first time...


59 posted on 09/26/2020 5:49:43 AM PDT by trebb (Don't howl about illegal leeches, or Trump in general, while not donating to FR - it's hypocritical.)
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To: mad_as_he$$

60 posted on 09/26/2020 5:55:46 AM PDT by SamAdams76 (Orange Man GOOD!)
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