Cryptocurrencies are very popular now. If before people were afraid to invest their money in cryptocurrencies, now everyone knows about bitcoins, litecoin, altcoins and other crypto coins. I believe that the best time to buy cryptocurrency is when the price of cryptocurrency drops. If you read a lot on the Internet about bitcoins, then you know when this cryptocurrency will grow, when the price for one cryptocurrency exceeds the price for which you bought it, then this is the time to sell or exchange your cryptocurrency for another currency. You can easily convert bitcoins, for example, to dollars or euros on this site https://hiribi.com/
. It doesn't take much time.