The currently ongoing research and development on central bank digital currency must be carried out as planned. It would also be noteworthy to see how a growing number of central banks are setting up fast payment systems that they directly establish and operate under their real-time gross settlement systems in order to reduce settlement risk.
There are several technical reasons, but a more fundamental reason is to create a buffer against the opposite of inflation— that is, deflation. Deflation is a general and persistent decline in the level of prices, a phenomenon Americans last experienced during the Great Depression of the 1930s and one that Japan has confronted for most of the past two decades.