BTC hourly volume suddenly surged, and this signal is not looking good. The key thing to watch is whether the subsequent hourly candle can hold solidly above 91500. If it breaks below, I have a feeling that the second half of the night will require some vigilance—this is a typical case of a strong start with a weak finish, with bulls' efforts producing no results. Why? Because the whales have deployed massive positions here to suppress the price, clearly unwilling to let the price rise so smoothly. Once volume contracts and pulls back, there's likely another wave of selling pressure coming, which will leave retail traders confused.

In any case, let's use 91500 as the dividing line—whether the closing candle's body can hold above it will determine the rhythm for the next few hours. Of course, this is just a reference opinion, not necessarily accurate every time. I'm going to get some sleep now; there's no point in continuing to watch the charts.