Home / Science / Time travel isn’t as dangerous as we think, says one study – BGR

Time travel isn’t as dangerous as we think, says one study – BGR

  • Researchers say if you’re worried about time travel paradoxes, you shouldn’t be.
  • Based on complex math, the team says they have determined that time travel paradoxes correct themselves.
  • For example, you could go back and interact with your past self without ruining your future or even changing it in any measurable way.

Time travel is, of course, purely science fiction, at least for now. Several theories have suggested that time travel, even into the past, may actually be possible based on our understanding of physics. Still, a big question remains, and it’s one that’s often faced in movies and TV shows dabbling in alternate timelines: What about paradoxes?

A simple example of a paradox that is often mentioned in fictional time travel stories is the seemingly high risk of altering the past in such a way that the time traveler itself ceases to exist. Interacting with one̵

7;s parents or grandparents, for example, could change their fate and eventually lead the time traveler to never be born. Now, a new study suggests we may not have to worry about these things.

Like everything related to the notion of time travel, the paper discusses some highly hypothetical concepts. Written by a University of Queensland graduate student and his physics professor, the article examines classic cases of paradoxes and explains that, in theory, paradoxes would correct themselves to maintain the status of the “future” if we were to return. back in time.

The researchers explain that based on the theory of general relativity, it should be possible to go into the past and even interact with ourselves. Using some math that I don’t even pretend to understand, the duo advocates paradox-free time travel based on the idea that no matter what you’ve changed in the past, corrections would be made automatically so that the future won’t. . affected in a measurable way.

“Let’s assume you have traveled through time in an attempt to prevent COVID-19 patient zero from being exposed to the virus,” Dr. Fabio Costa, co-author of the work, said in a statement. “However, if you prevented that individual from being infected, that would eliminate 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 think that time travel cannot take place in our universe. “

Ok, so what’s the solution? After analyzing the numbers, the duo states that in theory, reality would have simply fixed itself one way or another.

“In the coronavirus patient zero example, you could try to prevent patient zero from getting infected, but by doing so you would catch the virus and become patient zero, otherwise someone else would,” explains Germain Tobar, lead author . “Whatever you have done, the salient events will recalibrate around you. This would mean that no matter what your actions, the pandemic will occur, giving your younger self the motivation to go back and stop it. “

These are quite shocking things and of course there is really no way to prove whether or not this is true as we do not have the ability to time travel and based on everything we think we know about it we are still a long way off. make that turn. However, if you bump into yourself on the sidewalk, don’t be afraid. Apparently, everything will work out by itself in the end.

Mike Wehner has been reporting on technology and video games for the past decade, covering the latest news and trends in VR, wearables, smartphones and the technology of the future.

Most recently, Mike was a technical editor at The Daily Dot and has appeared on USA Today, Time.com and countless other websites and print media. His love for
the report is second only to his gambling addiction.

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