an old lesson that has been forgotten needs to be relearned. Money is not meant to be saved. Money is for earning and spending. Saving should be done in real tangible assets.
There is only one asset you need though, and that is the same physical asset that Central banks hold that is not an IOU from another country. It is that asset only that will be able to be revalued and reflate the balance sheet when the currency 'assets' have burned to the ground.
Because currency is made to be inflated. It's universally producible for less than its face value.
Saving cash is ridiculous.