The core value of Fibonacci retracement levels is not to predict that prices will definitely rebound at a certain percentage, but to provide a potential support area that institutions and traders commonly reference. The significance of the 50%, 61.8%, and 78.6% levels is as follows: the deeper the retracement, the greater the likelihood that the trend is broken, and the higher the psychological pressure on participants. 50% represents a normal correction, indicating a healthy trend; 61.8% is the golden ratio, often a range where significant capital accumulation occurs; 78.6% is considered an extreme retracement, and if the market can stabilize and rebound from here, it indicates strong bottom support. The real application is to overlay these ratios with structural support, candlestick patterns, and volume signals to pinpoint the most likely reversal zones in the market, rather than simply waiting for the numbers to align.