Time travel is mathematically possible: surprising findings from new research
Scientists from Australia claim to have proven the theoretical possibility of time travel when solving a logical paradox. Writes about it Independent.
Physicists at the University of Queensland used mathematical modeling to reconcile Einstein's theory of general relativity with classical dynamics. The clash between these two systems is at the heart of the lack of time travel known as the grandfather paradox.
Einstein's theory allows for the possibility for a person using a time loop to travel back in time to kill their grandfather. However, classical dynamics dictate that the sequence of events after the death of the grandfather would result in the time traveler not existing at all.
“As physicists, we want to understand the most basic laws underlying the universe. For years I have puzzled over how the science of dynamics might fit with Einstein's predictions, ”said Germain Tobar, one of the study's leaders. "Is time travel mathematically possible?"
For their calculations, Tobar and Dr. Costa used the COVID-19 pandemic as a model to find out whether the two theories could coexist. They introduced a time traveler trying to return and prevent COVID-19 patient zero infection.
Einstein's theory allows time travel, but the science of dynamics means that the fundamental sequence of events cannot be broken.
This is because if the time traveler manages to prevent the spread of the virus, it will relieve him of his initial motivation to travel in time.
“In the coronavirus patient zero example, you can try to stop the infection of patient zero, but you will get the virus and become patient zero yourself or someone else,” Tobar said.
“No matter what you do, important events around you will simply be rearranged. This would mean that - no matter what you did - a pandemic would break out, giving your younger self the motivation to come back and stop it. No matter how hard you try to create a paradox, events will always adapt to themselves in order to avoid any contradictions, ”added the physicists.
“A number of mathematical processes we have discovered show that time travel with free will is logically possible in our Universe without any paradoxes,” the scientists concluded.
University of Queensland physicist Dr. Fabio Costa, one of the project leaders, added: "The math confirms, and the results are science fiction material."
A paper detailing the research is published in the journal Classical and Quantum Gravity.
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