In the original time travel novel, The Time Machine by HG Wells, the main character is sent on an extraordinary journey into the future. On this 800,000-year journey, the Time Traveler, as he is known in the book, faces many new challenges and sees many new places. In parallel with this fictional story, time travel is becoming a new focus of study. Time travel, a theory supported by many world-renowned physicists, is a widely debated topic in modern times. However, to fully understand this debate, a small lesson is needed. The complexity of how time travel is theorized to work is not considered common knowledge. One of the easiest concepts to understand are paradoxes. This concept is described as an argument whose outcome does not seem possible with the initial proposition (Lycan 1). Paradox is a major basis for both sides of the argument. A seemingly more difficult concept, that of parallel universes, is defined as the theory that instead of a single universe, multiple universes exist and everything is copied in each of them (Wolf 101). This theory is opposed by the thought that there is only one universe. Following these narrow concepts, understanding time travel also requires an overview of the Theory of General Relativity, a broad topic. This was proposed by Einstein and he stated that the presence of matter will cause space-time around it to distort (Kenyon 1). It follows the Special Theory of Relativity which discusses how something that observes time around it, while moving, distinguishes how much time has passed between two events (Davies). These are both integral theories that help both sides defend themselves. The most difficult concept to master in the study of time travel is closed time-like curves. These curves are common... middle of paper... l-World Relativity: The GPS Navigation System." Ohio State University. Np, April 27, 2009. Web. June 9, 2010. .Talcott, Richard. "Time is on our side?" Astronomy vol. 34, no. 2. February 2006: 32-39. SIRSResearcher. Network. 18 May 2010. Thorne, Kip S., et al. "Protecting the chronology: making the world safe for historians". The Future of Spacetime. New York: WW Norton & Company, 2003. Page No. Print. Time Travel in Einstein's Universe: The Physical Possibilities of Time Travel. New York: Houghton Mifflin Company, 2001. Print.Trefil, James. "So what about time travel?" 101 things you don't know about science and that no one else knows. 18 May 2010. Lupo, Fred Alan The Yoga of Time Travel. Wheaton: The Theosophical Publishing House, 2004. Print.