Time travel isn’t possible, let’s wash our hands of any possibility and forget about it. It’s unclear if closed time-like curves exist in our universe, but if they do, mathematically, they would allow for time travel. Paradox-Free Time Travel While Preserving Freedom of ChoiceThat’s where young physicist Germain Tobar steps in. Under the supervision of physicist Dr. Fabio Costa, Tobar came up with a way to mathematically preserve freedom of choice, while allowing for paradox-free time travel. Instead, Tobar and Costa’s model is classical and shows that if only one universe exists, it is possible to allow for paradox-free time travel.

Source: Forbes October 12, 2020 13:52 UTC