As a thought experiment, if I use BTC as the unit of account, then the prices of all the stuff I want to buy denominated in Bitcoin vary wildly from month to mo

As a thought experiment, if I use BTC as the unit of account, then the prices of all the stuff I want to buy denominated in Bitcoin vary wildly from month to month. And if I choose a time frame of, say, 25 months or 19 months instead of 4 years, my savings lost more than half their purchasing power, which is far worse than anything QE has done to cash over equivalent time frames (ironically over a timescale which has been exceptionally bad for cash and exceptionally favourable to a notional "safe asset" alternative)