GiuseppeC:
being massively adopted by people might change that.
I see sort of problem here. Money as a substance was invented by a small circle of "masters" to rule the "slaves". Nowadays, money rule the whole planet, money makes any human a slave of it. I'm not completely sure how a "normal" human could merely accept that some paper makes him/her a slave; he may agree to it, but adopting it, s/he positively agrees that s/he IS a slave. How this could be normal?
Now, when we already have yet
physical substance for making slaves, you suggest another
virtual, or not even existing substance, to make the same: or, you declare, that humans would positively confirm the double slavery.
Total bullshit. For making this possible, all governments, all financial powers on the planet would need to fall. But in this case, where would you take the damn electricity?..