As the world finds new and profitable assets to digitize and put on blochchains, the total global GDP will rise. Exponentially imo. This will facilitate porous national borders and currency sovereignty. Political borders will soon follow, to the dustbin. BTC as the underlying evaluation denominator, and possibly reserve world currency, being (extremely) finite, especially since will need another hundred years to produce the last 20% of them, will rise accordingly. In my opinion, I don't think the world will tolerate more than one store of value currency. And cryptos will probably the classified as commodity currency or something like that. So the network effect of Bitcoin moving from concept 2 everyday value is already at lightning speed. And other than its grandfatherly relationship to alts, it's is about as useless as most of the ico's that failed this year.
If lightning Network can up its speed, and a mining safety net is found, I see the tired and haggard fiat currencies rather to Bitcoins immutable bed.
Currencies, and especially store of value assets, are entirely what they are because the public think of them as trustworthy.
There's never been an alternative to fiat currency for hundreds of years.
When the 99% of the planet come to realize that the difference between the world's monetary and a Bitcoin based economy is like comparing Granite to gold, I believe their trust will shift.
And, in my opinion, the banksters and Wall Street and the market makers have looked through their telescopes into the near and far future, and realized this, and they are getting out in front of it now. To my mind, that's the only thing that can explain the paradox we are watching unfold