I think bitcoin can reach $ 20000 by the end of this year, we can see today bitcoin prices make us all surprised with very high rise, yesterday I woke up and saw bitcoin price $ 12000 and today I see bitcoin price has reached $ 15000 what the hell with this price.
20K before the end of the year seems pretty fast to me.
But we also reached 10k quite "easily" this year.
I agree. 20K is achievable but I do not see it happening this year 2017. Probably earlier next year. So many FUD and forks coming so there is no assurance yet that btc will continue to rise this year but sure it will. We just dont know when.