'All models are wrong, but some are useful'. In terms of policy making, the independent central banks of many countries (e.g. BoE) have been mandated to follow

'All models are wrong, but some are useful'. In terms of policy making, the independent central banks of many countries (e.g. BoE) have been mandated to follow this model pretty closely - when inflation (a primary metric against which they are judged) rises (like now), interest rate increases and 'QT' are the response. I'd prefer to see fiscal policy being used more - then the expansion/contraction of the money supply can be better directed for social good, and interest rates can remain nearer their 'natural' level in terms of correct pricing of time/risk.