If you can buy the same amount with them, then they are demonstrably not worth less.

In 2009 they printed money and dollars were worth more.

So if printing makes dollars worth more, why stop? Or that effect only applied to 2009?

Because supply alone is not what defines the value of money. This is the concrete example of why Austrian economics is a wholly insufficient model.

I think the Austrian school explains quite well the phenomenon, like Newton’s Laws for dynamics.

Now do Japan.