Bitcoin could be at $40,000 at the end of 2018. It easily could," Michael Novogratz says on CNBC's "Fast Money
Ethereum, which I think just touched $500 or is getting close, could be triple where it is as well," adds Novogratz, formerly a macro hedge fund manager at Fortress Investment Group.
many investors ready to pay millions in bitcoin and many companies ready to accept it.
bitcoin can easy reach 40k at the end of 2018

What I am waiting for right now is for Lightening network to become effective. If that can happen, there is every possibility that we may even see $40000 before the end of 2018 and that should be an healthy one as bitcoin becomes more useful as a currency with a lightening speed for transactions and low fees coupled with the level it has gotten to already.