SIR Model

A model is a toy version of the world, built so you can afford to make mistakes in it. SIR Model is a sturdy toy.

The model's real service is conversation. It gives a group of people the same picture to point at. Half of management is just getting everyone to look at the same wall.

The idea is simple, and like most simple ideas it is easy to nod at and hard to use. The nod is free. The use costs attention, every day, in small change.

A joint family runs on unspoken job descriptions. The day someone writes them down, half the quarrels lose their employment.

An organisation is only a group of people who have agreed, for now, to pull in roughly the same direction. One page cannot change a life. But one recognised pattern can change a Tuesday, and lives are made of Tuesdays.