So your statement implies that a typical American family is losing over 40% of its purchasing power year over year.
This is, quite obviously, not the case.
Inflation-protected treasuries are trading with about a 2.5% premium in yield. So if you can buy bonds, and sell inflation-protected bonds, you can make money if the inflation rate is below that.
You are talking about inflation, albeit maybe really severe inflation.
Also you are off by an order of magnitude regarding where inflation figures are at. As another commenter mentioned, I think you might be misunderstanding that those figures are annualized
I-bonds for small-time investors in the US. They have some nice tax benefits for holders. TIPS for big-time investors.
Global stock index funds. That saves you the trouble of buying and holding foreign currency and they pay dividends while you wait for the inflation apocalypse. Even domestic stocks have a good chance of coming out ahead.
Others have mentioned gold and silver. Those can be bought like stocks with GLD and SLV. Likewise you can buy real estate investment trusts if you aren't in a position to buy actual real estate. Those usually pay nice dividends.
If you're really worried about real hyperinflation, you should go find the best deal on bulk-purchases of every non-perishable thing you intend to use for the next year. You might be surprised at the investment return you get on buying a 5-year's supply of wine or t-shirts.
1. Hold a more stable currency, maybe GBP or JPY. It also means you need earn your salary in those same currencies. Move your other assets like equity etc to the same currency. I don’t think anything can be done about the pension account, unfortunately.
2. Switch to other forms to store value, preferably liquid, such as gold. Assume the hyperinflation will last for 2-3 years and calculate the gold you need to buy.
Though the chances of USD hyper inflation in our lifetime (next 40-50 years) are vanishingly low based on what I have read. USD is still by far the most powerful currency, to an extent that last March there was a global flight to the refuge of USD triggering insane scenarios like negative oil prices and equities tanking.
The next generation, however will have to be prepared for a bipolar currency, USD and CNY.