I imagine that you are basing that on the next halvening and also merely that kind of time frame gives bitcoin enough time to develop, expand, and perhaps prove itself on a more "spreading to the populace" basis?
Halvening of course, but I expect most of the crap that's blighted Bitcoin over the last few years to be resolved, or ignored, by then.
That goes for proper regulatory clarity, decreased media stupidity, scaling to be on its way to being settled and the traditional agitators mad or broke by that point. The weight of normal people and deeper pockets will be enough to drown out the people on the fringes who currently are too loud.
No doubt there'll be other drama, but the current batch will largely be over.
I don't want to be insulting to you or your position, but really? That seems so pie in the sky to believe that drama is going to end any time soon, whether it be from the incumbent drama makers or new ones.
Don't get me wrong, I do kind of agree with your overall assessment that 2020 could be a decent time frame for bitcoin to really prove itself - but not for the seemingly "no more drama from incumbent drama-makers" that you seem to ascribe.
I don't want to go on and on about this point, but let's just say hypothetically that Ver and Wu and Wright and some of the other BIG blocker attack on bitcoin nutjobs are completely discredited and broken financially and psychologically (which is pie in the sky in and of itself), there are plenty of other potential deep pocket players who can move in and out of those attack on bitcoin positions, causing drama, disinformation and attempts at instability... so yeah, maybe bitcoin is going to surge and move on beyond the bullshit drama and attacks, but I doubt that such moving on is going to be a product of no more attacks and fairly land living happily ever after, but instead likely to be a demonstration that bitcoin remains resilient inspite of the various attacks and the ongoing creativity of attacks and the ongoing increased persistency of such attacks - and peeps gonna largely see through this (whether broad base of regular population peeps but also smart money is also gonna likely see past the attacks, too... but such seeing past does not just happen, it takes time and a process and we are going to have to suffer through ongoing volatility, drama, uncertainty and disinformation.. that is the part and parcel of a disruptive technology, such as bitcoin)