> For now, virtual currencies such as Bitcoin pose little or no challenge to the existing order of fiat currencies and central banks. Why? Because they are too volatile, too risky, too energy intensive, and because the underlying technologies are not yet scalable. Many are too opaque for regulators; and some have been hacked.
This I can fully accept: there can be a future where some cryptocurrency becomes the world standard. Sure. Doesn't change all my critiques about the current situation which are so often downvoted.