I don't think so that price will touch anywhere near 50K in 2018.
As currently BTC is moving around 7 to 8 K range. Volumes are also in very significant.
To reach BTC at 50K it has to multiply by almost 7 times which is very difficult at the movement.
Another thing that more than half of the year has already passed and we have only left with 5 months.
Unless there are some abnormal positive announcements or news I see it very difficult to 50k.
But in crypto we can't say anything for sure.
It won't cross above 15k in 2018 according to my experience.
I m hopeful for 15K. lets see
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