中国开盘前，世界每个角落都在下跌

Group 1 - The global market is experiencing a downturn, with declines in gold, oil, U.S. stock futures, and Bitcoin, indicating a widespread sell-off [1] - The market's narrative shifted before the opening of the Chinese stock market, with investors realizing that Powell's speech at Jackson Hole suggested a single rate cut rather than the start of a rate-cutting cycle, leading to profit-taking [2][3] - Powell's comments indicate a more cautious approach to rate cuts compared to last year, suggesting that the market's expectations for a sustained rate-cutting cycle may be unrealistic unless upcoming data supports such a move [3] Group 2 - Bitcoin's performance serves as a warning for other markets, having fully retraced its gains from the previous Friday after a weekend decline [3] - The current market rally is fragile, heavily influenced by AI and interest rate cut expectations, with Nvidia's upcoming earnings report being a critical factor for market sentiment [4] - The market is precariously balanced between the Fed's cautious stance on rate cuts and Nvidia's potential to uphold the "AI myth," indicating that any slight change could lead to significant market instability [4]