Expiring money sounds hard to enforce. It clearly wouldn't expire after it was spent or transferred. So how do you guarantee that it is spent/transferred to something that isn't a savings vehicle?
I don't think so. I think the idea they want the money to lose its value only if someone hoards it. If it's spent quickly enough, it retains its full value now and in the future. That's not how hyperinflation works.
Hyperinflation is an economy wide collapse in production though.
If every human in the nation lost trust in the currency but there was enough production capacity to feed everyone then exports would rise until the currency appreciates to normal levels again. However, most nations suffering from hyperinflation don't have enough products to export in the first place.
