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Parrondo's paradox
Parrondo's paradox, a paradox in game theory, has been described as: ''A combination of losing strategies becomes a winning strategy''. It is named after its creator, Juan Parrondo, who discovered the paradox in 1996. A more explanatory description is:
:''There exist pairs of games, each with a higher probability of losing than winning, for which it is possible to construct a winning strategy by playing the games alternately.''
Parrondo devised the paradox in connection with his analysis of the Brownian ratchet, a thought experiment about a machine that can purportedly extract energy from random heat motions popularized by physicist Richard Feynman. However, the paradox disappears when rigorously analyzed.
==Illustrative examples==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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