Once Upon a Dream (Sleeping Beauty song) Once Upon a Dream (Sleeping Beauty song) "Once Upon a Dream" is a song written for the 1959 animated musical fantasy film "Sleeping Beauty" produced by Walt Disney. Its lyrics were written by Jack Lawrence, and its music by Sammy Fain. The song's melody is based on the "Grande valse villageoise" (nicknamed "The Garland Waltz"), from the 1890 ballet "The Sleeping Beauty" by Pyotr Ilyich Tchaikovsky. "Once Upon a Dream" serves as the film's main theme, and as the love theme of Princess Aurora and Prince Philip. It is performed in the film by a chorus as an overture and
Sleeping Beauty problem are being run; consider a program that is run twice after tails is flipped and once after heads is flipped. Sleeping Beauty problem The Sleeping Beauty problem is a puzzle in decision theory in which an ideally rational epistemic agent is to be woken once or twice according to the toss of a coin, once if heads and twice if tails, and asked her degree of belief for the coin having come up heads. The problem was originally formulated in unpublished work in the mid 1980s by Arnold Zuboff (work that was later published as "One Self: The Logic of