even bitcoin prices will not fall to the price of $ 5k in the future, I'm sure there are still many investors who will invest long term.
well I still wait to reach $ 20k again

We have a full report on the price movements and stabilities or instabilities exist in 2017 last year and in this current year almost all the investors know very well about prices and their movements. We have been noticing that value is stable after a downfall we had price fewer than 10k dollar and now the price is still here. I hope that 2019 will be very good year for all of us as we are here to make sure we will get profit.
The problem with a lot of people was that they expected just too much from the market in short term, had no understanding of how to invest or even the knowledge of the risk within the crypto space, and all these put together is something that I expect anyone should always be conversant with when it comes to investment. However, greed, laziness to study and some other factors, blinded some people. nonetheless, this does not change the fact that even though 2018 has been bearish, in the long term, the market is still bullish as far as I am concerned.