People believed this because they saw a big increase in cryptocurrency in December 2017. But at the moment they understood the fact that the cryptocurrency market will recover for a very long time.
The end of 2017 has created a great deal of confidence for investors in a good future for the cryptocurrency market so they have invested a lot but have not had the expected results. I think that if you want to develop with this market, each investor should equip themselves with knowledge to be able to self-assess the market and invest in the difficult period as today.