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A physicist says new math proves it is possible to travel through time without paradoxes



Time travel has been the basis of science fiction books and films for many years. Most of those who have read or watched content focused on time travel know the problem of paradox. Perhaps the best example is the 1980s classic “Back to the Future”, in which Marty accidentally prevents his parents from meeting and must correct his mistake before it is erased from existence.

Time travel is something that scientists and physicists have been considering for many years. A physics student named Germain Tobar of the University of Queensland in Australia says he understood the math that would make it possible to travel through time without paradoxes. According to Tobar, classical dynamics says that if you know the state of the system at a particular time, it can tell you the whole history of the system.

His calculations suggest that spacetime may be able to adapt to avoid paradoxes. An example is a time traveler who travels into the past to stop the spread of a disease. If the mission was successful, there would be no disease for the time traveler to go back and try to prevent. Tobar suggests that the disease would still spread in some other way, through different pathways or methods, removing the paradox.

He says that whatever the time traveler did, the disease would not be stopped. Tobar̵

7;s work is very complicated, but it essentially examines deterministic processes over an arbitrary number of regions in the space-time continuum. It is demonstrating how closed time-like curves predicted by Einstein can fit the rules of free will and classical physics.

Tobar’s research supervisor is physicist Fabio Costa of the University of Queensland. Costa says “the math is successful”, also pointing out that the results are science fiction stuff. The new math suggests that time travelers can do what they want and that paradoxes are not possible. Costa says events will always adapt on their own to avoid any inconsistency.


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