Mr. Xiaolong's Trading Review Room ----Prediction, Verification, Error Correction, Evolution Brothers and sisters, good now! Today's Bitcoin market forecast review is not here to take credit. I'm here to apologize. On August 19th, I posted a tweet titled 'Three Dimensional Integrated Trading System | BTC Subsequent Change Analysis and Simulation', with the core viewpoint that the probability of a direct downward change below 67500 and a rebound to 72000 is extremely low, only 5%. You have also seen the subsequent trend. BTC has been pushed from 62800 to over 72000. The direction is completely reversed. If you are wrong, you have to admit it. Today's review, I will break down each dimension of misjudgment. 1、 Quantitative dimension: Misunderstanding 'bottoming out' as' weak rebound ' I said at that time: the daily volume can continue to shrink, and the peak volume will decrease from 25093 to 17132. Any increase without volume is illusory, so it is downward. The phrase 'quantity comes first' itself is correct, but what is wrong is my selective interpretation of the signal. Shrinking to the extreme is a typical "eve of a turnaround" signal in technical analysis. It can go down or up. I directly assigned the term 'uncertain direction' to 'downward' direction judgment at that time. In hindsight, this is not a weak signal of "quantity reduction and price drop", but a bottom characteristic of "when selling is exhausted, a small amount of buying can drive the price". The land area itself is neutral, and only when the direction is chosen can we know. And I wrote the answer in advance. 2、 Spatial dimension: underestimating the transformative power of 'resistance to support' I said at the time: The 65500-67500 range has accumulated 2.4 million BTC, which is the largest cost intensive area in history. If we can't reach the top three times, there will definitely be a big drop. That makes a lot of sense. But a key mechanism was missed. When 67500 was broken through by the high-volume physical bullish line, the 2.4 million BTC instantly transformed from a "loss making supply" to a "profitable chip". The people who were waiting to sell their positions have stopped selling and instead become steadfast holders. The ceiling has turned into a floor. Once the resistance is effectively broken through, it will become a stronger support. My analytical framework at that time lacked the dynamic thinking of 'positive feedback after breakthrough'. One of the core errors in this round of misjudgment is to mechanically interpret the pressure level as something that can never be overcome. 3、 Macro dimension: Static understanding underestimates the magnitude of marginal changes I said at the time: the expectation of interest rate cuts has already been priced in advance, and the positive news will turn negative when it lands. Interest rate cuts occur when the economy weakens, putting pressure on risk assets. The logic itself is consistent, but the market does not follow my logic. I overlooked two key marginal changes: Firstly, the SEC compliance framework has been implemented. This is not 'meeting expectations', it is a structural benefit that exceeds expectations. The US cryptocurrency regulation has shifted from "law enforcement instead of regulation" to a clear compliance framework, a narrative market that had almost no pricing before. Second, the US Treasury expanded the scale of treasury bond bond repurchase. This is a tangible injection of liquidity, not an empty promise. I statically judged that the expectation of interest rate cuts has already been priced, but I did not notice that these new marginal variables are changing the underlying logic of the market. 4、 Financial dimension: Only see who is selling, not who is buying I said at the time: ETFs are repeatedly fluctuating, micro strategies are selling, miners are selling, Asian retail investors have not returned, and there is no new money. In hindsight, this was my biggest blind spot. I overlooked the scale of continuous fundraising by the giant whale in the range of 62000-65000, underestimated the strength of ETF fund flow reversal catalyzed by the SEC event, and mistakenly equated the "stock game" with "inevitable decline". The existing funds are indeed insufficient to support large-scale trend markets, but they can also drive market changes. I shouldn't equate the two. 5、 Path probability: Almost 5% of the paths have been excluded!! The probability of my given path is 65% downwards, rebounding first and then killing downwards by 30%, and only 5% when rebounding to 72000. The actual trend has chosen the path of 5%. This is not only a prediction bias, but also a problem with the underlying logic of the entire analysis framework. I did not revise my probability judgment in a timely manner after the price broke through 67500 and 69000, and still adhered to the old conclusion that 'this is a lure to buy and a dying struggle'. 6、 Follow up correction: What stage is it now? After recognizing mistakes, we still have to face the market. Reorganize the current logic: 67500 has been effectively broken through and converted into a support zone, while 72000 has also been touched. Above 73000-75000 is the position of the weekly downward trend line, which is also a more important examination room. Once the volume of 73000-75000 breaks through and stabilizes, technically it looks towards 83000 (the resistance line of Weikov Stage D). Lower support: 68000-69000 is the first line of defense, 65000-66000 is the mid-term structural support. As long as these key supports are not breached, the medium-term trend remains bullish. The core variable: 73000-75000 is the touchstone for this rebound. Over, 83000 is expected; Can't pass, please step back and confirm before waiting for the next wave. 7、 Experience summary Finally, summarize a few experiences: (1) The land area itself is neutral and cannot be given direction in advance. The ultimate result of shrinking to the extreme is a reversal, and as for where to change, it depends on the direction of subsequent breakthroughs in volume. (2) Once the key resistance is breached, the judgment framework must be adjusted immediately. The conversion force from resistance to support is often stronger than imagined. (3) Macro analysis should not only focus on 'known expectations', but also track' unknown marginal changes'. The SEC compliance framework and US bond buybacks are not expectations of interest rate cuts themselves, but independent new variables. (4) If you make a mistake, correct it immediately and don't be kidnapped by 'my previous judgment'. The market will not follow your script just because you analyze it well. (5) Probability judgment should be flexible. When the price has exceeded the key price point, the old probability framework must be recalibrated. In conclusion This prediction was wrong, it was wrong. But I always believe that the core of trading is not to never make mistakes, but to be able to quickly correct and continuously evolve after making mistakes. This is also my original intention for creating the column 'Trading Review Room'. Thank all the brothers and sisters who tolerate me and trust me. The market is the best teacher, and I will continue to evolve. What do you think of this market trend? Can 73000 go over? Discuss your judgment in the comment section.