Sounds like as good of a deal as right now where do the dollar bills I hold are guaranteed to be worth less tomorrow, with occasional periods of it being worth significantly less.
The US inflation rate has never been more than 4% annually in over 30 years. Bitcoin often moves more than 20% in the span of a few days. If you don't like volatility, you don't want Bitcoin.
How would you like the dollar bills you have in your pocket to hold a completely random value tomorrow?