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168:. Gott's machine depends upon the antigravitational tension of the (hypothetical) strings to deform space without attracting nearby objects. The traveler would follow a precise path around rapidly separating strings, and find that he or she had moved backwards in time. Gott's solution does require that the strings are infinitely long, though: a theorem by
619: (archived September 28, 2007) an interview with science & spirit magazine which briefly covers Gott's personal views on the major controversies he has stirred up. He combines his two more controversial positions by saying that he would like to travel 200,000 years into the future to see whether his
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Gott also proposed a "time mirror": a time travel device based on the principle of time delays. The device would be situated near a black hole some hundred or more light years from Earth. The device would act as a light collector and would power the light rays deformed and curved by the gravitational
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is applicable in cases where nothing is known; unless there was something special about his visit (which he did not think there was) this gave a 75% chance that he was seeing the wall after the first quarter of its life. Based on its age in 1969 (8 years), Gott left the wall with 50% confidence that
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Since Gott believes that time travel is not cosmologically excluded, he has presented the possibility that the universe was created out of itself (at a later time). This controversial suggestion was published with Li-Xin Lin, and it was described by Gott as "it would be like having one branch of a
203:, Gott argues that travel to the past is quite possible, although probably only after the construction of a working device (during its existence), and certainly not onto the time traveler's own past timeline (he argues that either the
219:, he is not completely committed on the subject of time travel to the past. The book does say that nothing known excludes such travel, but he does not completely rule out the possibility that future research may prove it impossible.
298:
high school student science competition. He is an active promoter of the public awareness of science at the popular level, and
Princeton students have voted him the school's outstanding professor several times.
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gives a very brief non-mathematical description of Gott's alternative; the specific setup is not intended by Gott as the best-engineered approach to moving backwards in time, rather, it is a theoretical
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illustrated with a few pictures and a GIF animation of a self-creating universe, in which Gott advocates the importance of the average person having an education in science and especially
215:). Although he is keen to emphasize that time travel itself is a commonplace physical phenomenon, by this he means time travel into the future at varying rates through
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In fact, the wall was brought down in 1989, and 1993 was the year in which Gott applied his "Copernicus method" to the lifetime of the human race. His paper in
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to the survival of humanity; His original prediction gave 95% confidence that the human race would last for between 5100 and 7.8 million years. (
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511:(1993, Nature vol 363, p315) This was Gott's original description of the Doomsday argument. He later published a popularized version in...
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depression of the black hole. The collector would then reveal the past as detailed by the photons that had originated from Earth.
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188:, while cosmic strings would not be expected to violate these conditions, so strings of finite length would not work.
658: (archived June 22, 2007) Rüdiger Vaas argues that Gott's self-creating universe is not rendered meaningless by
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211:, or that all time travel remain self-consistent, i.e., one can visit the past but not change it, as in the
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tree circle around and grow up to be the trunk. In that way, the universe could be its own mother."
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He received the
President's Award for Distinguished Teaching in acknowledgment of his work on the
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Gott & Li's 1998 self-creating universe model compared with other cosmological models of time
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Time Travel in
Einstein's Universe: The Physical Possibilities of Travel Through Time
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Time Travel in
Einstein's Universe: The Physical Possibilities of Travel Through Time
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was delivered earlier that year, but Gott's derivation was independent.)
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magazine a 95% confidence interval for the closing time of forty-four
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interpretation of quantum mechanics must be invoked to overcome the
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643:- online content of the full article requires a paid registration.
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Implications of the
Copernican principle for our future prospects
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who distinguishes physical from metaphysical questions by their
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and Off
Broadway productions based only on their opening dates.
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and wondering how long it would stand. Gott postulated that the
567:, American Mathematical Monthly, Vol 74, p. 497-504, 1967.
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He made a major effort subsequently to defend his form of the
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cannot be created in a finite region of space unless there is
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Abstract to Gott's "A grim reckoning" New
Scientist article
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J. Richard Gott, III - Astronomy
Faculty page at Princeton
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The cosmic web - mysterious architecture of the universe.
613:"J. Richard Gott on Life, the Universe, and Everything"
481:"J. Richard Gott on Life, the Universe, and Everything"
231:" of lifetime estimation in 1969 when stopping at the
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it would not be there in 1993 (1969 + 8·(1.5/0.5)).
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272:attacks, and this debate (like the feasibility of
296:National Westinghouse/Intel Science Talent Search
677:"A Survival Imperative for Space Colonization"
594:. Princeton University Press, Princeton 2016,
591:Welcome to the Universe: An Astrophysical Tour
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574:Princeton University Press, Princeton 2016,
374:(1992). "Chronology protection conjecture".
647:A link to the entire New scientist article.
129:(born February 8, 1947) is a professor of
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336:, infinite periodic polyhedra in 3-space
160:credits Gott with the proposal of using
588:, Michael A. Strauss, J. Richard Gott,
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19:For the journalist and historian, see
685:on Gott and the Copernican Principle.
223:Copernicus method and Doomsday theory
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724:Scientists from Louisville, Kentucky
213:Novikov self-consistency principle
149:Exotic matter time travel theories
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709:20th-century American astronomers
529:, 2002, Penguin popular science,
553:, 2002, Houghton Mifflin Books,
453:Timothy Ferris (July 12, 1999).
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184:present which violates certain
675:John Tierney (July 17, 2007).
137:. He is known for his work on
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527:How to build a time machine
455:"How to Predict Everything"
257:'s alternative form of the
249:was the first to apply the
227:Gott first thought of his "
158:How to Build a Time Machine
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432:Everett, Allen E. (1995),
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623:prediction would pay off.
334:Regular pseudopolyhedrons
172:proves that according to
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434:Warp Drive and Causality
396:10.1103/PhysRevD.46.603
16:American astrophysicist
719:American Presbyterians
514:Gott, Richard, J III.
507:Gott, Richard, J III.
479:Neimark, Jill (2007).
421:Closed Timelike Curves
178:closed timelike curves
131:astrophysical sciences
42:J. Richard Gott (1989)
714:American cosmologists
546:means of time travel.
355:"Matthew Headrick CV"
127:John Richard Gott III
95:gravitational physics
30:John Richard Gott III
486:Science & Spirit
304:Louisville, Kentucky
251:Copernican principle
237:Copernican principle
135:Princeton University
105:Princeton University
586:Neil deGrasse Tyson
518:, 15 November 1997
388:1992PhRvD..46..603H
209:Grandfather paradox
439:2011-07-06 at the
268:from a variety of
217:special relativity
174:general relativity
621:Doomsday argument
580:978-0-691-15726-9
570:J. Richard Gott,
565:Pseudopolyhedrons
376:Physical Review D
302:Gott was born in
274:closed time loops
266:Doomsday argument
259:Doomsday argument
229:Copernicus method
199:In his own book,
186:energy conditions
143:Doomsday argument
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81:Scientific career
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549:J Richard Gott,
516:A Grim Reckoning
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101:Institutions
91:Astrophysics
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21:Richard Gott
699:1947 births
423:, pp. 9-10.
233:Berlin Wall
205:many worlds
154:Paul Davies
139:time travel
693:Categories
542:for a non-
522:(page 36).
502:References
443:, p. 7368.
328:Kip Thorne
306:. He is a
65:Louisville
54:1947-02-08
662:'s first
627:Q & A
312:teleology
664:antinomy
544:wormhole
540:argument
437:Archived
419:(1993),
404:10014972
322:See also
316:theology
284:Broadway
141:and the
69:Kentucky
654:at the
635:physics
615:at the
384:Bibcode
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246:Nature
87:Fields
629:with
358:(PDF)
341:Notes
660:Kant
596:ISBN
576:ISBN
555:ISBN
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466:2010
400:PMID
48:Born
392:doi
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