Indeed, based on the history of the year we can clearly see that the lowest point of bitcoin always goes up, but not for the highest price, when bearish prices are many old users who state that "the lowest value always rises" so that users do not panic. This proves that bitcoin investment is the best long-term investment? I don't think so, why are users always afraid when the value goes down, the main key of investment is management and information
This proves that bitcoin as an investment is a good option for those who are willing to put their money in it. If the lowest prices rises then it only becomes more difficult for people to enter at a lower price than you. Of course this is not perfectly correct, because a big dump below the price you buy at can happen any time.
But if you patient enough and know that the future support of bitcoin is very likely from all big whales then you should be assured of an uptrend.