As I said on the other thread, there is a government with a police force backing fiat. They also guarantee they will buy the fiat currency and in exchange give you the continued use of the land you own. This is why it is called 'fiat', which means backed by law or authority.

Not really. You get to keep your property if you pay fiat to your local government every year. That is backstopping its value.

You can pay your taxes with it at the very least.

Wow. Talk about destroying any credibility you’d hoped to hold onto. Total foot-gun action.