The bottom is not equal to the bottom range. The bottom is the lowest point. Generally, there are not many bullets left when it arrives, so you can just grab the bottom range. From a theoretical perspective, after the three-sell decline, the trend is perfect and can be reversed at any time. Therefore, after the three-sell decline, it enters the bottom range. This range can be very large, usually 10-20%, even if it falls by 50% (mostly black swan) For example, at the end of 2018, the computing power war went from 6,000 to 3,000, but it is undeniable that 6,000 is still the bottom range.
Even if Bitcoin 15,000 is not the bottom of the bear market (recession will depend on next year), it may be the starting point of the bear market rebound. Whether to participate or not depends on everyone's holding cycle.