That why it's called a prediction ,we are all predicting the pumps and dumps of bitcoin but in reality nobody knows the truth .
That is true and we do not know what could be the high price for 2021 and what if it just get dumped badly, though I do not think it may take that long time like from 2107 to 2020 it took to reach ATH again, but it could be much sooner than that due to various institution getting involved, bitcoin is being also being bought by people who ignored in start and said to be bubble etc. But will it cross 50k sooner or in 2021 is the first thing in my mind currently.