Robbie, interesting take, but I doubt many western countries will allow for that much without action. There are ONLY 15 countries with more than 1Trillion in GDP, source 1 below. While I am certain there will be continued growth - I am bullish on cryptocurrency and the emerging technologies from it. I think for many places their government is still looking at what to do in order to properly glean taxes. With several different think tanks making crypto a topic lately; source 2, I am certain there is legislation to come down the pike.

Sources:
1 http://statisticstimes.com/economy/countries-by-projected-gdp.php
2 http://bilderbergmeetings.org/press-release.html