>Clearly events unfold in a linear fashion and we cannot rewind time like a movie and go back to exact events that have occurred in the past. I know it's kind

>Clearly events unfold in a linear fashion and we cannot rewind time like a movie and go back to exact events that have occurred in the past. I know it's kind of facetious, but we can't flap our arms to fly either, and that doesn't mean that gravity unfolds in a linear fashion and we cannot rewind its direction. Things get a lot simpler if you don't believe in free will. Maybe you could observe the past or future through some experiment that we haven't figured out. But you also wouldn't be able to change it. It just is, like space. A lot of time travel fiction takes that sort of view; plot twist, all of the protagonists' efforts to change the future they saw actually wind up leading them straight to it. Gasp!