[wyldfire]

Ten years down, millennia to go.

[cs702]

Countries and currencies cease to exist regularly. Here's an incomplete list of countries that have disappeared in recent history:

https://www.thoughtco.com/missing-countries-1435425

[shabda]

NO currency has survived a millennia.

Almost all currencies backed only by their governments, and not by physical gold, are at most a century old.

[pmiller2]

Not true. The pound sterling has been in continuous use since around 800 CE.

[thechao]

That's a ship-of-Theseus fallacy.

The pound sterling of 2019 is more related to the American dollar of 2019 than it is to the pound sterling of even WWII, nonetheless 800CE.

[pmiller2]

Not really. It’s just a matter of changing times and prices. Pounds and pennies have been a thing for 1200 years. What they buy has changed dramatically.

[rpz]

And additionally the American dollar is not the same as it was pre bretton woods, or pre federal reserve, etc.

[zajd]

The ship of Theseus isn't a fallacy, it's a thought experiment.

[Rmilb]

And lost 99% of its value!