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  What it means

  Literally “the butterfly effect,” this phrase came into Polish through science and popular culture. It means that a small action can have large, unpredictable consequences far from where it began. The image comes from chaos theory: a butterfly flapping its wings in Brazil could, in theory, trigger a tornado in Texas. In everyday Polish, it describes unexpected chain reactions or the consequences of small decisions.

  Vocabulary

  • efekt — effect, result
  • motyl — butterfly (genitive: *motyla*)

  Grammar note

  *Efekt motyla* is a noun phrase in which *motyla* is the genitive singular of *motyl* (butterfly). It expresses possession or association, "effect of the butterfly." Polish often uses the genitive for this relationship, where English uses "of" or a compound noun.

  Cultural context

  This international term came into Polish from English-language science and film. It is common in intellectual conversation, journalism, and online discussion in Poland about systems, politics, and personal decisions. It has a slightly philosophical or poetic tone and is understood by most educated speakers.

  Intermediate

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