I know where during 2008 bitcoin and altcoin price still lower and many people do not really care about bitcoin could raised to higher price like now, always give negative feedback about bitcoin and altcoin price.
sometimes people only see part of it. nowadays many people are frustrated because of the price, but if we look at it from the beginning to 10 years, bitcoin has shown good progress, so that the potential for the future
bitcoin price shows good movement since 5 years ago.maybe people never thought bitcoin price will hit $20k on 2017.and now much people interested investing in bitcoin in order to gain much profit after several years.