Can the history of money portend as to the future role of Digital Currencies?

History may well be able to offer us some valuable lessons as to what to expect in the future when it comes to how we pay for goods and services i.e., money. Since 1450, we have seen six reserve currencies Portuguese Real (1450–1530), Spanish Real (1530–1640), Dutch Guilder (1640–1720), French Franc (1720–1815), Pound Sterling (1815–1920), and finally the US Dollar from 1921 to now.

The history of world reserve currencies since 1450