Heck no I don't agree.  BTC has already slowed its growth in the past week or so.  I think it will level off short of $5,000.00, decline sharply and stay around $4,000 until the end of the year.  No huge drops, no huge gains.  It will be higher in 2019 than it is today though.  Probably around $13,000.00. 

Just so you know.  I have absolutely no basis for the above other than it just being my gut feeling!