… and so all this digital currency will lead to what? Less control by gov’t and more by big business? Is this what will lead to technology imbedded in humans so that they can carry their currency around? Our bodies perhaps becoming power sources?

I can see many great uses for block chain technology, esp. within larger governments to connect through to smaller municipalities or even within departments and/or ministries. Of course that would require collaboration.

Personally I think gold and silver (actual bullion) will survive all this when the power eventually turns off or is hijacked.