It's just not the necessity of crushing the cash economy. That's a small part of a very large adjustment to a global society. The likes of Amazon and FaceBook for example will create a logical shift in global economics, still governed by CBs but run by huge companies that influence everyones daily life.
The deflationary effects are steering the changes and should not stop now. Consider it an endless stream of life changes.
It is scary because the future cannot be guaranteed. The technological changes to daily life will each alter the way economies function. Since the Industrial Revolution we've had 5% average growth, most of it in the last 20 years. What replaces growth?
