Social media and online舆论 significantly impact cryptocurrency prices by shaping investor sentiment and driving speculative behavior. Platforms like Twitter and Reddit can amplify news, rumors, and opinions, leading to rapid price fluctuations. Quantifying this influence involves analyzing sentiment through自然语言处理 (NLP) techniques, tracking mentions, and correlating them with price movements. Metrics such as sentiment scores, tweet volume, and influencer activity provide insights. Studies often use regression models to measure the relationship between social media activity and price changes, revealing that heightened positive or negative sentiment can lead to corresponding price surges or drops.