The problem is what you do in the moment. When you are busy. When a colleague goes
first. When you assume conditions are the same as yesterday.
It is also why the quantity matters: the more rules competing for attention at once,
the fewer of them are followed. It is the same limit a person has
in the middle of a working day. The mechanism is the same for people and for
systems →
So we do not measure completion. We look at whether people do something differently
afterwards — and rebuild it if they do not.