Being a person with a passion for both fantasy and history, it makes sense that I gravitated towards writing time travel into my current work in progress. Historical/fantasy fiction requires research, which I thoroughly enjoy.
When an author delves into time travel as her genre (or part of it), she must establish rules. When you research what other authors' rules for time travel have been, the only true similarity is that they all stay consistent to the rules that they set. How does the time travel occur? How does the main character travel to a specific time or place?
And on and on...
His theories on time include:
1- Time is relative: The rate at which time passes depends on your frame of reference. For example, time passes more slowly for an object in motion than when it is at rest.
2- Time is not absolute: The perception that a second is always a second everywhere in the universe is not true.
3- Time is an illusion: The distinction between past present, and future is only an illusion.
4- Time judgments are based on simultaneity: Judgments of time are based on judgments of what happens at the same time.
5- Time is a construct: Our brains construct a sense of time as if it were flowing from our experience with rhythmic phenomena.
The third theory mentioned that time is an illusion, is like music to my ears. Then, when you add Arthur C. Clarke's quote: "Any sufficiently advanced technology is indistinguishable from magic" adds to the thought that maybe, just maybe, time travel is actually possible! (This idea assists me as I'm writing to make my story more believable.)
A paraphrased version of Arthur C. Clarke's quote is "Magic is just science we haven't yet discovered."