In reality, three years is a very short time for a major currency to lose at least a quarter of its domestic purchasing power. In the postwar period, it took from the war’s end until 1965 for that to happen. This was also the loss from 1982 to 1992, from 1992 to 2000, and from 2001 to 2012.
Any purchasing power loss sets in motion a gravitational pull against living standards. It means working harder, scrambling more, adding income to the household revenue stream, and otherwise never quite getting ahead. It also eats into savings by punishing rather than rewarding thrift as should be the case.
In a complex modern economy with elaborate capital structures, prices serve as information-generating systems for the world that allow for rational use of resources throughout the whole of the production structure.