Earlier quoted context omitted.
Valuation of what does make sense though? Other than A=A, all valuations are artificial.
Most valuations make sense as they are tied to the intrinsic value of things. A potatoe will feed you for a while. The value can vary - a potatoe farmer won't be hungry, so the value is to learn a living, a hungry person will value a potatoe very high. The price at each step in the chain between the farmer and the hungry person is determined by a lot of factors - distance and the scarcity vs. need at each point. Same…
Exchange rate volatility is problematic. My solution is mainly to have more Bitcoin than I'd ever use, unless its value crashed. That works for me because I accumulated most of it years ago, and I'm too paranoid to cash out.
Otherwise, I'd need to distribute among multiple resources that were relatively stable, or didn't move together.