It is just a sort of market assumption, we can just say figure (16%) if we already know it will happen but we don't. I know there are some REAL experts living but they are silent when it regards market movement because they know that they will just fail.
Dump always happens, a swing market movement is really what we experience but it is accepted due to the market nature. Whether ATH happens or not, I was already satisfied enough from the current price, it is indeed a good selling price already for the holders.
I agree with what you said. I personally have sold some of my Bitcoin for TP and will wait for a dip to buy again. I still have a few Bitcoin dollars left because I believe Bitcoin will approach ATH this month. The market is always changing and usually when Bitcoin has a big increase in 1 week (around 11%) the market will experience a correction phase and it could be bullish and hit ATH or the market dumps again.
However, I believe that with the many important moments this year and Bitcoin's success in reaching ATH, this is a super mega cycle that will have a very positive impact on the crypto market. I believe Bitcoin will reach $100,000 by the end of the year. But for now I am still trading where I try to buy on the Dip and sell it during a bullish market like now.