The Sleeping Beauty (ballet) and Princess Aurora arrives. She is introduced to four suitors by her doting parents. Aurora and the suitors perform the famous Rose Adagio. Presently, a cloaked stranger appears and offers a gift to the princess: a spindle. Having never seen one before, Aurora curiously examines the strange object as her parents desperately try to intervene. As predicted, she pricks her finger. While initially appearing to recover quickly, she falls into a swoon and collapses. The cloaked stranger reveals herself to be Carabosse, who believes that her curse still stands and that the princess is dead. Once again, the Lilac Fairy
Sleeping Beauty problem with imperfect recall was provided first by Michele Piccione and Ariel Rubinstein in their paper: "On the Interpretation of Decision Problems with Imperfect Recall" where the "paradox of the absent minded driver" was first introduced and the Sleeping Beauty problem discussed as Example 5. The name "Sleeping Beauty" was given to the problem by Robert Stalnaker and was first used in extensive discussion in the Usenet newsgroup "rec.puzzles" in 1999. Sleeping Beauty volunteers to undergo the following experiment and is told all of the following details: On Sunday she will be put to sleep. Once or twice, during the experiment,