1-2% inflation is "healthy" is a trope that nobody really justifies. Perhaps its true, and it is often repeated as gospel. the "2% inflation target" was derived just from the comments of economist Roger Douglas in New Zealand who thought that sounded about right.

We welcome and celebrate deflation in technological goods (cars, electronics), apparel but are constantly warned about the dangers of deflation and why "some" inflation is good.

What is the argument for why 1-2% _deflation_ in housing, education, and healthcare would be bad?