About that, I have a great doubt that cash can permanently go out of use. The value can deteriorate continually, but it will never be stopped. Even if Bitcoin becomes a global legal tender, physical money will never be displaced. But, normally, I don't think Bitcoin can be legally accepted in every part of the world; it's likely to only be in some countries. I know that change is constant, but even if anything happens and we stop using physical cash, maybe every payment is carried out electronically, via transfers or pay cards, and it will still be the local currency we are using.


Cheers 🥂, Dr.Bitcoin_Strange 👺👺