This article talks about how the US has gained the status of the world's dominant currency and also says digital currency could be an alternative to the US dollar for a dominant position.

Article Link:

https://www.livemint.com/opinion/columns/the-dollar-might-be-staring-at-the-end-of-its-reserve-currency-status-11601302289499.html

Questions:

1) Do you really think, there is a dominant currency than the US? Why do you think so?

2) Do you think investments on Pfizer for the vaccine which is showing a positive outcome can bring back the currency status of the US?