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Physicist Theory of Paradox-Free Time Travel

Physicist Theory of Paradox-Free Time Travel

Science Alert has a really cool article about time travel.  It doesn’t get a whole lot more geeky that discussions on Time Travel.  Many of our fascinations with time travel goes back to The Time Machine novel by by H. G. Wells or movie adaptions.  Others of us go back to Star Trek or Back to the Future or Terminator.

Whatever our go to is for time travel, there is always the fear of the Paradox.  Can we change our present by what we do in the past.  Can we prevent our own birth?  Does the butterfly effect take place?

It’s a monumental head-scratcher known as the ‘grandfather paradox’, but now a physics student Germain Tobar, from the University of Queensland in Australia, says he has worked out how to “square the numbers” to make time travel viable without the paradoxes…

Tobar’s work isn’t easy for non-mathematicians to dig into, but it looks at the influence of deterministic processes (without any randomness) on an arbitrary number of regions in the space-time continuum, and demonstrates how both closed timelike curves (as predicted by Einstein) can fit in with the rules of free will and classical physics.

“The maths checks out – and the results are the stuff of science fiction,” says physicist Fabio Costa from the University of Queensland, who supervised the research.   (Science Alert)

This is so cool that a physics focused on this.  I don’t understand the math but would love to have a better general understanding of how it works.

Stay Geeky!

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