> The moment digital transactions become cheaper/more-efficient, the allure of crypto-currencies will disappear. Except for drugs, contraband, money laundering

> The moment digital transactions become cheaper/more-efficient, the allure of crypto-currencies will disappear. Except for drugs, contraband, money laundering, and evading capital controls. Which, from day one, has been the entire actual value of these things and remains so. That's a reasonably big business to be sure, but it will always remain a niche element and always be under fire, for obvious reasons.