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Grandfather paradox

Index Grandfather paradox

The grandfather paradox is a paradox of time travel in which inconsistencies emerge through changing the past. [1]

36 relations: Adolf Hitler, Alfred Bester, Amazing Stories, Black Holes and Time Warps, Bradley Dowden, Causal loop, Chronology protection conjecture, Closed timelike curve, Cosmic censorship hypothesis, David Deutsch, Eternalism (philosophy of time), Event horizon, Future Times Three, Gödel metric, General relativity, Joseph Polchinski, Kurt Gödel, Modal logic, Nat Schachner, Novikov self-consistency principle, Paradox, Parallel universes in fiction, PBS, Philosophy, Quantum field theory, René Barjavel, Schrödinger's cat, Science fiction, Stephen Hawking, Temporal paradox, The Holocaust, The Men Who Murdered Mohammed, Time loop, Time travel, Time travel in fiction, World War II.

Adolf Hitler

Adolf Hitler (20 April 1889 – 30 April 1945) was a German politician, demagogue, and revolutionary, who was the leader of the Nazi Party (Nationalsozialistische Deutsche Arbeiterpartei; NSDAP), Chancellor of Germany from 1933 to 1945 and Führer ("Leader") of Nazi Germany from 1934 to 1945.

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Alfred Bester

Alfred Bester (December 18, 1913 – September 30, 1987) was an American science fiction author, TV and radio scriptwriter, magazine editor and scripter for comic strips and comic books.

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Amazing Stories

Amazing Stories is an American science fiction magazine launched in April 1926 by Hugo Gernsback's Experimenter Publishing.

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Black Holes and Time Warps

Black Holes & Time Warps: Einstein's Outrageous Legacy is a 1994 popular science book by physicist Kip Thorne.

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Bradley Dowden

Bradley Harris Dowden is professor of philosophy at the California State University, Sacramento.

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Causal loop

A causal loop in the context of time travel or the causal structure of spacetime, is a sequence of events (actions, information, objects, people) in which an event is among the causes of another event, which in turn is among the causes of the first-mentioned event.

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Chronology protection conjecture

The chronology protection conjecture is a conjecture first proposed by Stephen Hawking which hypothesizes that the laws of physics are such as to prevent time travel on all but submicroscopic scales.

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Closed timelike curve

In mathematical physics, a closed timelike curve (CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime that is "closed", returning to its starting point.

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Cosmic censorship hypothesis

The weak and the strong cosmic censorship hypotheses are two mathematical conjectures about the structure of singularities arising in general relativity.

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David Deutsch

David Elieser Deutsch (born 18 May 1953) is an Israeli-born British physicist at the University of Oxford.

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Eternalism (philosophy of time)

Eternalism is a philosophical approach to the ontological nature of time, which takes the view that all existence in time is equally real, as opposed to presentism or the growing block universe theory of time, in which at least the future is not the same as any other time.

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Event horizon

In general relativity, an event horizon is a region in spacetime beyond which events cannot affect an outside observer.

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Future Times Three

Future Times Three is a 1944 novel by the French writer René Barjavel.

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Gödel metric

The Gödel metric is an exact solution of the Einstein field equations in which the stress–energy tensor contains two terms, the first representing the matter density of a homogeneous distribution of swirling dust particles (dust solution), and the second associated with a nonzero cosmological constant (see lambdavacuum solution).

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General relativity

General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.

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Joseph Polchinski

Joseph Gerard Polchinski Jr. (May 16, 1954 – February 2, 2018) was an American theoretical physicist and string theorist.

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Kurt Gödel

Kurt Friedrich Gödel (April 28, 1906 – January 14, 1978) was an Austrian, and later American, logician, mathematician, and philosopher.

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Modal logic

Modal logic is a type of formal logic primarily developed in the 1960s that extends classical propositional and predicate logic to include operators expressing modality.

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Nat Schachner

Nat Schachner (full name Nathaniel Schachner; January 16, 1895 – 1955), also appearing as "Nathan Schachner" was an American author.

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Novikov self-consistency principle

The Novikov self-consistency principle, also known as the Novikov self-consistency conjecture and Larry Niven's law of conservation of history, is a principle developed by Russian physicist Igor Dmitriyevich Novikov in the mid-1980s.

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Paradox

A paradox is a statement that, despite apparently sound reasoning from true premises, leads to an apparently self-contradictory or logically unacceptable conclusion.

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Parallel universes in fiction

A parallel universe is a hypothetical self-contained reality co-existing with one's own.

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PBS

The Public Broadcasting Service (PBS) is an American public broadcaster and television program distributor.

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Philosophy

Philosophy (from Greek φιλοσοφία, philosophia, literally "love of wisdom") is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language.

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Quantum field theory

In theoretical physics, quantum field theory (QFT) is the theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics.

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René Barjavel

René Barjavel (24 January 1911 – 24 November 1985) was a French author, journalist and critic who may have been the first to think of the grandfather paradox in time travel.

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Schrödinger's cat

Schrödinger's cat is a thought experiment, sometimes described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935.

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Science fiction

Science fiction (often shortened to Sci-Fi or SF) is a genre of speculative fiction, typically dealing with imaginative concepts such as advanced science and technology, spaceflight, time travel, and extraterrestrial life.

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Stephen Hawking

Stephen William Hawking (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author, who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge at the time of his death.

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Temporal paradox

A temporal paradox, time paradox, or time travel paradox is a paradox, an apparent contradiction, or a logical contradiction that is associated with the idea of time and time travel.

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The Holocaust

The Holocaust, also referred to as the Shoah, was a genocide during World War II in which Nazi Germany, aided by its collaborators, systematically murdered approximately 6 million European Jews, around two-thirds of the Jewish population of Europe, between 1941 and 1945.

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The Men Who Murdered Mohammed

"The Men Who Murdered Mohammed" is a science fiction short story by American writer Alfred Bester.

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Time loop

A time loop or temporal loop is a plot device in which periods of time are repeated and re-experienced by the characters, and there is often some hope of breaking out of the cycle of repetition.

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Time travel

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically using a hypothetical device known as a time machine.

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Time travel in fiction

Time travel is a common theme in fiction and has been depicted in a variety of media, such as literature, television, film, and advertisements.

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World War II

World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.

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Redirects here:

Autoinfanticide, Grandfather Paradox, Granny killing paradox, Hitler paradox, Hitler's Time Travel Exemption Act, Hitler's murder paradox, Paradox of the grandfather, Time traveler paradox, Timetraveler paradox.

References

[1] https://en.wikipedia.org/wiki/Grandfather_paradox

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