The investment in cryptocurrencies is a kind of gambling, which, as shown by previous years, sometimes pays off. The panic selling of cryptocurrencies at the time when the price begins to fall is often unreasonable and rash. It is worth to wait out the worse moment to gain later. It all depends on how long the investment is planned, because someone who can invest for a short time is forced to sell their BTC when the price falls to reduce the maximum losses.
I disagree completely with this, and investment in cryptocurrencies is not like gambling, and those that treat their investments that way cannot call themselves investors at all, an investor needs to know exactly why he is doing what he is doing and how a particular cryptocurrency he is buying fits into his plans, if you do not have at least that information, how are you going to know if you are making progress towards your goals?