There's also Peter Lynch's Cocktail Party Theory, super effective—definitely worth checking out: This is a method proposed by the famous Wall Street fund manager Peter Lynch to determine stock market phases. • Market downturn phase: When at a cocktail party, everyone would rather gather around the dentist to talk about toothaches than pay attention to an investment guru like Peter Lynch, it means the stock market has been down for long enough—this could be a good time to consider buying the dip. • Market overheating phase: When Peter Lynch becomes the center of attention at the party, with everyone toasting him, seeking investment advice, or even recommending stocks to him, it means the stock market has reached its peak—time to think about cashing out. This theory essentially observes the general public's level of interest and enthusiasm toward the stock market to determine its phase. It's a reverse indicator based on market sentiment.