Re: "more troublesome than real money without any real advantage"
What ifs on quantum computing does not make a currency.
Block chains have great potential.
Crypto currency however by design require all the computational power there is. So when quantum comes even more will be mined to the limit of available compute, it will become more expensive to transact with, and so some newer cryptocurrency will come along.
So by design a given cryptocurrency has an expiry date or perhaps a non longer fashionable date. And it is so trivial to create another one. Eg Btc vs bch
What good is a Crypto currency too expensive to mine (and thus transact with) or too cheap to mine (so it has no value)? Whatever goldilocks cryptocyrrency will be trendy and then die away. This makes it difficult to be an enduring store of value.
There is nothing differentiating the 6000+ crypto currencies out there other than purely subjective criteria. You could have made a lot of `value', on any of them, just like horse racing.
In terms of transactions it plays the same role as a black market or secret gambling ring.
Buying anything with Btc is very much more expensive, so you need to have made profits on it, which means the volatility is a requisite.
Other than people saying one day it will be great nothing in practice when using it is. And those people hold cryptocurrency so they'd say that wouldn't they?
How do you tell the difference between the Dutch tulip bulb hysteria and genuine enduring collective agreement of value?
Biting the hand that feeds IT
