It will be an all digital, no cash society soon where your REAL ID complete with biometric ID scan, DNA numbered card with your bank account on the card.  Once the power goes off, what will you do?

This is coming in a very well coordinated attack on currency. Here Larry Summer, one of the main powers behind the monetary scene, calls for an end to the $100

It’s time to kill the $100 bill – The Washington Post

please see also:

R.I.P. Cash 2016! A Very Big Deal February 12, 2016