If a stimulus is required (which it definitely will be when the next downturn hits, unless we want the worst depression in history), we'll be begging for inflation. But there will be massive deleveraging and the resulting deflation to compete with. All the while, there will be fools crying for austerity, and business men thinking a sovereign government with the power to issue currency should be run like a business (i.e. tightening the belt during a downturn).