So I recently finished the book End of Eternity by Isaac Asimov. This is an amazing book, really easy to read and a great exploration of different ways to think about time travel. The other piece that the book explores is what happens when you can alter a timeline, which is one of the more – potentially – problematic parts of time travel.
Eternity is the location where the Eternals observe, calculate, and alter time. Eternity exists as a space that is separate from the normal timeline where someone can travel up and down the timeline to view that time, but the Eternals will also alter the timeline if they find an occurrence that could be considered harmful to humanity. These changes have the potential to end the existence of some human beings or alter personalities, etc, but the Eternals feel that they are doing what is best for the whole human race. As every time travel story tells us: messing with time is never quite that simple. (Spoilers ahead for End of Eternity) Continue reading