The physicist invents mathematics to show that time travel is possible

time travel

“The math works – and the results are science fiction” (Image: Unsplash)

Time travel has long been everyone’s favorite science question, and one scientist has proven that paradox-free time travel is actually theoretically possible.

In 2020, a physics student Germain Tobar from the University of Queensland in Australia was working to make time travel feasible.

“Einstein’s general theory of relativity predicts the existence of time loops, or time travel – where an event can be either in the past or in the future – theoretically turning the study of dynamics on its head,” Tobar said.

Tobar, then an undergraduate student, said a unified theory that could reconcile both traditional dynamics and Einstein’s theory of relativity was the holy grail of physics.

“But current science says that both theories cannot both be true,” he said.

Back to the time machine of the future

A recreation of the DeLorean Time Machine from the Back to the Future movies (Image: Propstore/Mega)

Under the direction of the physicist Dr. Fabio Costa Tobar found a way to “square the numbers”, the calculations having “intriguing consequences for science”.

“The math works – and the results are science fiction,” said Dr. Costa.

“Suppose you traveled in time to prevent patient zero of Covid-19 from being exposed to the virus. However, if you prevented that person from becoming infected, it would remove the motivation for you to go back and stop the pandemic in the first place.

“This is a paradox — an inconsistency that often leads people to believe that time travel cannot take place in our universe.”

While some physicists say it is possible, logically it is difficult to accept as it would interfere with our freedom to act arbitrarily.

“That would mean you can time travel, but you can’t do anything that would create a paradox,” said Dr. Costa.


Time travel has been the stuff of sci-fi movies (Image: CBS via Getty Images)

The study, published in Classical and Quantum Gravity, states that it is possible for events to adjust to logically match the time traveler’s every action.

“In the example of coronavirus patient zero, you could try to prevent patient zero from becoming infected, but in doing so you would catch the virus and become patient zero, or someone else would,” Tobar said.

“No matter what you did, the salient events would recalibrate around you. This would mean that whatever your actions, the pandemic would occur, giving your younger self the motivation to go back and stop it.

“Try to create a paradox, events will always adjust to avoid contradictions.”

The range of mathematical methods discovered by the researchers showed that time travel with free will is logically possible in our universe without any paradox. The physicist invents mathematics to show that time travel is possible

Justin Scacco

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