Perpetual Motion (card game)

Perpetual Motion is a Patience game which has the objective of discarding playing cards from the tableau. The name relates to the time-consuming process of the game. It is also called Idiot's Delight or Narcotic.

The name Perpetual Motion is also the alternative name of another card solitaire game called Rondo or Eight-Day Clock. The name Idiot's Delight is also used to refer to two other unrelated games, namely Aces Up and King Albert.