Who said anything about hyperinflation? Regular inflation occurs constantly (and by design) and must be compensated for. If you just leave your cash in a checking account and walk away for 10 years you will come back to radically less buying power than when you left it - the number might be the same, but the total money supply will have grown tremendously thus reducing that money's buying power. According to inflation estimates $1 USD in 1970 was equivalent to almost $7 USD in 2021 value. The point of an investment portfolio is to outpace this dilution so that your wealth grows and you are not diluted into ruin by the printing of new money. A balanced portfolio that has some percentage allocated to instruments that tend to hold a steady value or grow inversely to inflation are critical. BTC is shaping up to be a good choice to add alongside of gold and other precious metals which have historically been used for this purpose. It is short term VERY volatile, but long term it has consistently WAY outpaced inflation.