バタフライ効こう果か

noun

butterfly effect

Technical term from chaos theory; describes how a small change can lead to large-scale, unpredictable consequences.

• バタフライ効こう果かとは、蝶ちょうの羽はばたきが遠とおくの天てん気きを変かえるという考かんがえ方かただ。

  The butterfly effect is the idea that a butterfly's flapping wings could change the weather far away.