Patri Friedman

Currency is used to measure and exchange value. Monetary policy relates to value creation in 2 main ways: First, the lack of stable currency makes value creation harder: costs/revenue are measured with a changing ruler, cost of capital unclear, hard to make fixed-price contractshttps://twitter.com/FatiAmans/status/1035604389535338501 …

Second, monetary policy implies someone is minting or burning tokens. Minting tokens transfers value from holders to the minter. If used well, this may provide benefits (say, funding crypto devs), or costs (central bank asset price manipulation).

Like any technology, currency has tradeoffs. The best measure might hold a constant price w.r.t. some value bundle, but that's hard b/c population growth increases demand (deflation), productivity decreases actual cost of any given value bundle, etc.