The rules of time-travel have been debated by scientists and sci-fi fans alike for years, but now a student physicist has been able to "square the numbers" to show how paradox-free time travel is theoretically possible. This means that should someone be able to time travel, the dreaded butterfly effect might not be as inevitable as has been feared -- but that doesn't mean a time-traveler might not still face unintended consequences.
In a peer-reviewed paper published in Classical and Quantum Gravity, University of Queensland student, Germain Tobar, collaborating with the university's physics professor Fabio Costa, mathematically discovered how, "time travel with free will is logically possible in our universe without any paradox.”

Wow. I can't believe it. Fuck you ashton kutcher!

https://www.ign.com/articles/paradox-fr ... cs-student

Don't click that link

Hate to tell ya this "Amigo", but that is sort of the essence of how life works.