I sell my BTC at 200,000$ becasue i know that BTC will touch this price soon when the bull is come.
it is just a prediction based on the annual historical chart, but as you may know, there is another possibility that it will not happen, the reason is because trading, trading greatly affects the price of bitcoin, whereas the development of trading today is very different from trading in 2016, today there are many kinds of trading, such as futures, leverage, or perpetual, and this type of trading is full of manipulation, different from the spot market.
That's why i'm not too sure if bitcoin is up to 200k usd, because there are several types of trading that suppress the volatility of bitcoin.