Haven't I said? Inflation. Have you checked house prices or asset prices lately in terms of the balance sheet of the FED?
Bitcoin is the only asset which gave you a real return in the last, maybe 10 years. Even if indexed the NASDAQ or whatever, your real return was probably below 0.
You can copy paste a lot of definitions, that's great. Just tell me how your returns were and how you measure them. If you measure them in Dollars, then show me what your money buys you now versus what it bought you 10 years ago.
You can say I am hedging against the devaluation of FIAT currencies.