QUESTION = Is time travel possible?? GENERATION = The only way to go from here is to go to some place that lets you go backwards in time and reverse direction in space. It's not so much that there's nothing out there, it's that we don't know how to get there. With no technology to go faster than light, no matter how fast we go, the rules of physics apply and we'd have no way to reverse time in space or reverse space in time. There's no easy answer to "yes". This means that unless someone was willing to go back in time and reverse direction to the future, there's no way of getting to that point. This isn't impossible, it's just really, really hard to do. For a new alternate route to get from here, a new starting point could be found, and with technology to go faster than light, we could travel back and forth forever and ever in time and space. This is not so far from theoretical possibility as that this technology would allow for greater returns on investment and better payoffs for the investors involved. For everyone involved, it would be a significant investment. Edit: a word. RETRIEVAL #0 = Frequently Asked Questions About Time Travel---Tyler BULLET::::- "Magic" - performed by The Countdown Singers BULLET::::- "The Final Countdown" - performed by Eskimo Disco BULLET::::- "Humans" - performed by Ry Byron & The Gentlemen RETRIEVAL #1 = Time travel---quantum gravity theory rather than proof that causality violation is possible. Section::::Time travel in physics.:General relativity.:Other approaches based on general relativity. Another approach involves a dense spinning cylinder usually referred to as a Tipler cylinder, a GR solution discovered by Willem Jacob van Stockum in 1936 and Kornel Lanczos in 1924, but not recognized as allowing closed timelike curves until an analysis by Frank Tipler in 1974. If a cylinder is infinitely long and spins fast enough about its long axis, then a spaceship flying around the cylinder on a spiral path could travel back in time (or forward, depending on the direction of its spiral). However, the density and speed required is so great that ordinary matter is not strong enough to construct it. A similar device might be built from a cosmic string, but none are known to exist, and it does not seem to be possible to create a new cosmic string. Physicist Ronald Mallett is attempting to recreate the conditions of a rotating black hole with ring lasers, in order to bend spacetime and allow for time travel. A more fundamental objection to time travel schemes based on rotating cylinders or cosmic strings has been put forward by Stephen Hawking, who proved a theorem showing that according to general relativity it is impossible to build a time machine of a special type (a "time machine with RETRIEVAL #2 = Time travel---Earth that many ages have passed. The Buddhist Pāli Canon mentions the relativity of time. The Payasi Sutta tells of one of the Buddha's chief disciples, Kumara Kassapa, who explains to the skeptic Payasi that time in the Heavens passes differently than on Earth. The Japanese tale of "Urashima Tarō", first described in the "Nihongi" (720) tells of a young fisherman named Urashima Tarō who visits an undersea palace. After three days, he returns home to his village and finds himself 300 years in the future, where he has been forgotten, his house is in ruins, and his family has died. In Jewish tradition, the 1st-century BC scholar Honi ha-M'agel is said to have fallen asleep and slept for seventy years. When waking up he returned home but found none of the people he knew, and no one believed his claims of who he was. Section::::History of the time travel concept.:Shift to science fiction. Early science fiction stories feature characters who sleep for years and awaken in a changed society, or are transported to the past through supernatural means. Among them "L'An 2440, rêve s'il en fût jamais" (1770) by Louis-Sébastien Mercier, "Rip Van Winkle" (1819) by Washington Irving, "Looking Backward" (1888) by Edward RETRIEVAL #3 = Time travel claims and urban legends---company AMF. Section::::Travellers.:Paul Dienach. In 1921, Paul Amadeus Dienach, a Swiss-Austrian teacher, fell into a coma for a year. When he woke up, he began writing a diary that he kept secret until he contacted one of his students, Georgios Papachatzis, to translate it and keep it secret. In his writings, he claims to have awakened in the body of a man, Andrew Northman, in the year 3906 AD. According to the author, when awakened in the future, people realized that it was not Northman, and told him the events during the future period. Section::::Technology. Section::::Technology.:The Chronovisor. Chronovisor was the name given to a machine that was said to be capable of viewing past and future events. Its existence was alleged by Father François Brune, author of several books on paranormal phenomena and religion. In his 2002 book "The Vatican’s New Mystery" he claimed that the device had been built by the Italian priest and scientist Father Pellegrino Maria Ernetti. While Father Ernetti was a real person, the existence (much less the functionality) of the chronovisor has never been confirmed. Section::::Technology.:Iranian time machine. In April 2013, the Iranian RETRIEVAL #4 = Sandu Popescu---John Stewart Bell Prize BULLET::::- 2011 European Research Council (ERC) Advanced Grant on Nonlocality in Space and Time BULLET::::- 2011–present Distinguished Research Chair – Chapman University BULLET::::- 2010 The Ambassador's Diploma – awarded by the Romanian Embassy BULLET::::- 2009–2011 Distinguished Research Chair – Perimeter Institute BULLET::::- 2004 Clifford Paterson Lecture – awarded by The Royal Society BULLET::::- 2001 Adams Prize – awarded by the Faculty of Mathematics, University of Cambridge Section::::External links. BULLET::::- Academic page University of Bristol BULLET::::- Through the Wormhole with Morgan Freeman – Can Time go Backwards? RETRIEVAL #5 = Time travel---in these stories. The earliest work about backwards time travel is uncertain. Samuel Madden's "Memoirs of the Twentieth Century" (1733) is a series of letters from British ambassadors in 1997 and 1998 to diplomats in the past, conveying the political and religious conditions of the future. Because the narrator receives these letters from his guardian angel, Paul Alkon suggests in his book "Origins of Futuristic Fiction" that "the first time-traveler in English literature is a guardian angel." Madden does not explain how the angel obtains these documents, but Alkon asserts that Madden "deserves recognition as the first to toy with the rich idea of time-travel in the form of an artifact sent backward from the future to be discovered in the present." In the science fiction anthology "Far Boundaries" (1951), editor August Derleth claims that an early short story about time travel is "Missing One's Coach: An Anachronism", written for the "Dublin Literary Magazine" by an anonymous author in 1838. While the narrator waits under a tree for a coach to take him out of Newcastle, he is transported back in time over a thousand years. He encounters the Venerable Bede in a monastery and explains to him the developments of the coming centuries. However, the story never makes it clear whether these events are real or a dream. Another early work about time travel is "The Forebears of Kalimeros RETRIEVAL #6 = Time travel---Alexander, son of Philip of Macedon" by Alexander Veltman published in 1836. Section::::History of the time travel concept.:Early time machines. One of the first stories to feature time travel by means of a machine is "The Clock that Went Backward" by Edward Page Mitchell, which appeared in the "New York Sun" in 1881. However, the mechanism borders on fantasy. An unusual clock, when wound, runs backwards and transports people nearby back in time. The author does not explain the origin or properties of the clock. Enrique Gaspar y Rimbau's "El Anacronópete" (1887) may have been the first story to feature a vessel engineered to travel through time. Andrew Sawyer has commented that the story "does seem to be the first literary description of a time machine noted so far", adding that "Edward Page Mitchell's story 'The Clock That Went Backward' (1881) is usually described as the first time-machine story, but I'm not sure that a clock quite counts." H. G. Wells's "The Time Machine" (1895) popularized the concept of time travel by mechanical means. Section::::Time travel in physics. Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime or specific types of motion in space might allow time travel into the past and future if these geomet