The Physics of Time Travel Part IBefore we start talking about the physics of time travel, let me say a few more words on time itself, in a way slightly less metaphysical that was the discussion in the previous chapter which is why Im writing this here, in a chapter with an increased emphasis on the analytical. When we speak of journeying to either the future or the past, we are implicitly making a distinction in the direction of the time travelers trip. But does time actually have a direction Is there an arrow that points the way The answer seems obvious of course time has a direction. After all, everybody knows it flows from past to future. There is a curious language problem here, however, because we also like to say the present recedes into the past, which implies a flow in the opposite direction, from future to past. Western philosophy is the philosophical tradition of the Western world and dates to PreSocratic thinkers who were active in Ancient Greece in the 6th century BCE. Before we start talking about the physics of time travel, let me say a few more words on time itself, in a way slightly less metaphysical that was the discussion in. Well, despite this snarled syntax, can we at least distinguish past from future, whichever way time flows
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November 2017
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