We would certainly and undoubtedly reach minimum $25K by end of 2020 not falling back to below $20K.
It is possible to reach this price in the years you mentioned, but the biggest challenge we have is: for how long would bitcoin remain at the $ 20,000 level? what we saw last year was just a pump in the price, but the most important question was: how much time could you keep if you had the $ 20,000 price? it would be necessary to have a lot of constant demand to maintain this price of $ 20,000 for a long time. Where would this constant demand come from? These are the questions I have and I do not find answers.
I think it will break through $20,000 at the end of 2018 and should stay above $50,000 in 2019.
to reach $ 20,000 this year very difficult, I would say that it has less than 5% chance of this happening, in the same way that I would say that it has less than 5% of the next year to reach the price of $50,000