So are we to expect any sudden drop down to 16k again on the price of bitcoin this year or we will going through with this current 20k to 21k mark.?
There is still a chance bitcoin will drop to $16k again, what is happening is more of a trap than a real bull run. But I will not sell my bitcoins at this price or higher because there is no guarantee bitcoin will fall back. The profit is also too small if anyone sells from now on, I think most people will wait until bitcoin hits ATH to start selling them.
I don't see anything wrong with selling Bitcoin above 21K due to the abnormal price pump of Bitcoin for a short time. Holding until ATH is a good strategy too but taking a profit on a sudden pump like this is good too because there's always a correction for every price action like this since impulse traders will surely take a profit when after they bought below 20K once the price stops moving above. The current price is already stagnant at 21K level which is a sign that bulls power is weakening. It's either we will experience accumulation and then pump or a quick correction will happen but I'm more on the correction scenario since there's no real big news backing this run.