诺奖大佬互掐、专家不如猴子：我们到底能否预测股票市场？

Group 1 - The article discusses the contrasting views of two Nobel laureates, Robert Shiller and Eugene Fama, on market predictions and the concept of market efficiency, highlighting the difficulty of accurately predicting stock market movements [4][7] - The Hang Seng Technology Index has shown unpredictable trends, with significant changes in the top holdings of the Hang Seng Technology ETF from its inception in 2020 to 2025 [4][6] - The article emphasizes the challenges of forecasting in complex systems, comparing stock market predictions to weather forecasts and earthquake predictions, which are notoriously unreliable [9][11][12] Group 2 - The article critiques the notion of predictions in finance, suggesting that vague or overly broad predictions lack credibility, and emphasizes the importance of specific, quantifiable forecasts [16][17] - It presents the Efficient Market Hypothesis (EMH), which posits that stock prices follow a random walk, making them inherently unpredictable, and discusses the implications of this theory for market participants [19][21] - The article argues that while short-term stock price movements are difficult to predict, long-term trends may show a tendency to rise, suggesting a need for diversified investment strategies rather than reliance on precise predictions [31][33]