Cryptocurrencies are a very dangerous type of investment. In 2018, we were convinced that investing in crypto must be done carefully, many of my hnakami went bankrupt, but there are also those who have become rich.
Indeed crypto currency can be an opportunity and also a dangerous threat. I agree with your opinion that in 2018, crypto currencies have a tendency to be more dangerous than opportunities. The chance of success in 2018 is very small because the market is very volatile. But on the one hand, crypto currencies can be dangerous when we are not careful in playing inside. Crypto currency is very risky to cause us to go bankrupt or even poor if we don't play with the strategy especially in this downturned market. This investment in 2018 can be very dangerous if we choose investment land (such as ICO) that does not use a clear basis, meaning that we just go along without doing our own definite analysis. Even worse if we invest in the wrong place but we don't realize it and we are addicted to seduction to add as much investment as possible. Addiction is what usually makes us forget everything and usually we just realize when it's bankrupt.