What does the term “wildly fluctuate” mean? In 50 years of USD fiat, gold vs USD has gone from 35$ to ~2000$ per ounce. That seems pretty rapid to me, since I can still talk to living people who experienced it
At least BTC has historically gone up, whereas fiat goes down, although only a few years of data for crypto compared to thousands of fiat, so maybe crypto will do the same as well