On this chart you can clearly see that after BTC goes into low volume and liquidity it quickly starts a long term trend. The first wave in 2014 lasted 130 days and increased by 1160%. The second wave lasted 850 days and increased by 7830%. Following this trend, the third wave will last at least 1000 days. If you have capital that you will not need in the next 3-5 years, BTC would be a great choice. Although last year we saw some cryptocurrencies made immense gains and losses , the big players "only" lost 65%-90% in price. Small coins are getting delisted, while the big players will increase in value long term. In the next few years the future of crypto will be decided, it can bring you immense profits, and only 100% losses.