Pie in the sky的意思

"Pie in the sky" is an English idiom that refers to an unrealistic or overly optimistic promise of future reward or benefit, often one that is made to persuade someone to do something without immediate compensation. The phrase is often used to describe a vision or goal that is so idealistic that it seems impossible to achieve or is merely a fantasy.

The origin of the phrase is sometimes attributed to the labor movement of the early 20th century, particularly the Industrial Workers of the World (IWW), also known as the Wobblies. They used the phrase to criticize the promises of future rewards made by other labor organizations, which they felt were overly optimistic and unlikely to materialize.

The phrase has been used in various contexts, including politics, business, and personal goals. It is often used to caution against being too hopeful or to suggest that someone may be trying to deceive you with unrealistic promises.