# Point of divergence

Point of divergence

In discussion of counterfactual history, a divergence point (DP), also referred to as a departure point or point of divergence (POD), is a historical event with two possible postulated outcomes. Typically these represent the actual course of historical events (Napoleon lost the Battle of Waterloo) and another, such as Napoleon won the Battle of Waterloo.

In alternate history fiction, the POD is used as the starting point for the extrapolation, as it is indeed in much of the science fiction genre.

In Philip K. Dick's The Man in the High Castle, the point of divergence is Franklin D. Roosevelt's fictional assassination in 1933. In Ward Moore's Bring the Jubilee, the point of divergence is the fictional victory of the Confederates at the Battle of Gettysburg in 1863. In Eric Flint's alternate history (a time travel variation) he postulates an Assiti Shard event which juxtaposes parts of our planet including the town of Grantville, West Virginia in both space and time—a twist on scientist's referring to a space-time continuum in relativisic (Einsteinian) physics. Similar implausible points of divergence are often referred to as being done by alien space bats.

One multiverse theory posits that PODs are occurring all the time, with an infinite variety of possible outcomes that each creates a universe, this having been used as a premise to the 1990s U.S. television series Sliders. Speculative fiction is full of universes based loosely on the concept of multiple universes, including many fantasy milieus.

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• Point de divergence — Un point de divergence est le point précis où l histoire officielle et celle contée dans une uchronie divergent. Ce peut être par exemple : la mort précoce ou retardée d un personnage historique, provoquant un retard dans les sciences, le… …   Wikipédia en Français

• point de divergence — skėsties taškas statusas T sritis fizika atitikmenys: angl. point of divergence vok. Divergenzpunkt, m rus. точка расхождения, f pranc. point de divergence, m …   Fizikos terminų žodynas

• point of divergence — skėsties taškas statusas T sritis fizika atitikmenys: angl. point of divergence vok. Divergenzpunkt, m rus. точка расхождения, f pranc. point de divergence, m …   Fizikos terminų žodynas

• point of divergence — the conjugate focus from which the light proceeds …   Medical dictionary

• divergence — [ divɛrʒɑ̃s ] n. f. • 1626; lat. sc. divergentia 1 ♦ Situation de ce qui diverge, de ce qui va en s écartant. ⇒ dispersion, écartement. Divergence d une lentille, d un système optique. ⇒ vergence. ♢ Métrol. Mesure de la puissance d un système… …   Encyclopédie Universelle

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