I think it is simple, it is just a downtrend, when downtrend ends, the price of market will increase again. I know the time of this downtrend is long, it is about 1 year or more but I think it will end soon because now the price is really low, the uptrend will appear soon
Perhaps the uptrend will appear only in the second half of 2021. But so far there is a good opportunity to buy cryptocurrency at low prices.