Federal Reserve Chairman Walsh's speech is scheduled for tonight (August 28, Friday) at 22:00 Beijing time. This is his keynote speech at the Jackson Hole Global Central Bank Annual Meeting and the most critical market variable tonight. Multiple sources have confirmed this timing. Quick note: No matter what he says, it only affects short-term sentiment, not the driving force behind BTC's trend direction. The direction is determined by volume and capital structure—tonight is just amplified volatility.