$BTC Last night, the big coin began to decline all the way down, reaching a low of around 83700, then it started to gain strength, bouncing back to around 86800. The trading ideas in the morning and evening yesterday were successfully validated. From a technical structure analysis, looking at the 1-hour chart of the big coin, it touched the upper Bollinger Band and then began to run towards the middle Bollinger Band. The KDJ three lines started to turn downward, and it can rebound for operations in the morning.