If and when cryptocurrency and/or bitcoin becomes the official currency of the world, do you think there will be a downside to it? If so, what do you think the negative effect will be once cryptocurrency becomes a worldwide currency?
All things have downsides, but it all matters to how heavier the benefits are. Bitcoin for example, if it were to become a worldwide currency, governments would have a hard time to tax people who operate business though crypto. The reason being their concept being opposite to each other--a centralized entitiy wanting to control a decentralized entity.