In 1972, the US meteorologist Edward Lorenz asked a now-famous question: "Does the flap of a butterfly's wings in Brazil set ...

It would mean you can time travel, but you cannot do anything that would cause a paradox to occur." Some outcomes of this are grouped as the “butterfly effect,” which refers to unintended ...

A man with repressed childhood memories comes up with a way to travel back in time and possess his younger self. But each time he goes back to correct something in the past, the mess of his present ...