You don't need an expert to understand what's happening here, the market gets pumped as a result of many factors, one of which is the halving event that occurs every four years and a year before the market records all time high.

This happens because prior to the halving, there has already been demand of Bitcoin in the market which is called the accumulation stages where Bitcoin is been bought strategically.

The dumped comes after profit has been secured, Thai the natural routine if the market but where the price difference is very high is due to the manipulation of the market by the whale. First they create the fomo which makes the market overbought and when the corrections does occur the market gets over dumped.