Nice article for introduction to crypto. Obviously cryptos are the future and sooner or later it is going to replace fiat currencies. The pace at which it has been adopted by mass within a decade , there is absolutely no doubt that it is going to be the only choice for the medium of exchange in very near future. Of course all the governments will definitely take their time to realize its potential which is far more useful than the risks involved. Already many country Governments have taken steps towards block chain technology even keeping a side the cryptocurrency factor. But without the use of reward giving system to miners of certain block chain the technology can't be expected to flourish. It will be very limited and within a closed environment always. According to me even the most conservative approach towards crypto will also realize within a few years that crypto currency system in fact a reward giving system is the soul of block chain without which the entire system will be cripple . Hence most part of the world even some greatest economists and technologists will take time to foresee the actual fact and the enormous potential of crypto. But the golden era have started from the first step taken by Satoshi Nakamoto ... only the world is waiting for the time for a complete adoption.