I was there in 2013 doing some mining and I dont remember the term double bubble ?    Sure there was a rise in the spring and then it peaked end of year, so thats similar to 2017 isnt it where we fell back a bit end summer to autumn perhaps then really picked up into December.

So 2018 has seen Dollar not falling like in 2017, its kinda flat maybe rising some and BTC has mostly unwound and theres little reason to think BTC will regain all its losses in this year.      However this is not at all gloomy, over the year time frame and view BTC is a gainer and seems quite positive overall in that sense.

To be 'bullish' as in 2017 gains then no, that was not a normal market and I'm not sure its even a good thing for BTC to gain that much as it unsettles the market and causes trouble to act like a rollercoaster.   If we stay just flat for 2017 it'd be quite positive, I'm bullish on that idea.   A flat market will likely benefit the mechanics and framework behind BTC, development will continue and we see further gains in future years.    I call that a bullish scenario even if outright price goes nowhere