How can a nation tell who's using crypto currency? Isn't there a level of anonymity that will make it cumbersome trying to pinpoint who to tax?
Well it sure is a lot easier than figuring out who is using paper cash...
I would actually say that it is about equal! And frankly in many ways bitcoins are better than pure cash. If you have any faith in crypto at all you have to imagine that the goods and services available through bit/other coins will only continue to increase.