At Armstrong Economics, Martin Armstrong warns against the adoption of digital currency, arguing that they destroy financial privacy. He writes:

The push toward digital currency is being framed as innovation and efficiency, but when you strip away the marketing language, what is unfolding is a structural transformation of the financial system that shifts control away from individuals and concentrates it within governments and central banks. The Bank for International Settlementshas confirmed that more than 90% of central banks are now actively researching, developing, or piloting central bank digital currencies, which is not coincidence or experimentation but a coordinated global direction. This aligns directly with what I have been warning, that when governments face a sovereign debt crisis they will turn to mechanisms that allow them to monitor and control capital flows because they cannot solve the debt problem through traditional means.

Read more here.