Exactly. There was a time when the British pound was the world's reserve currency (coinciding of course with British global hegemony). Fast-forward to today and the UK's GDP per capita[1] is lower than the poorest US state's[2].

1. https://en.wikipedia.org/wiki/Economy_of_the_United_Kingdom

2. https://en.wikipedia.org/wiki/List_of_U.S._states_and_territ....