Looking at today's four-hour chart, it is obvious that the top of the box oscillation formed previously, 68,000, has become the support position for the current retracement. Reasonable long positions, irresistible long positions.

      Through this point, it is easy to infer that the market will fall to 68,000 tonight.

     The key is to see whether 68,000 is sideways or rebounds immediately.

     If it is sideways at 68,000, the waterfall decline is about to begin.

     If it rebounds immediately at 68,000, it will be the last disgusting air force, and then rush to the previous high (it doesn't matter whether it breaks the previous high or not) and then reverse and fall without warning.