"The returns from refactoring are not linear; some of the most important insights come abruptly." #readingToday

The returns from refactoring are not linear. Usually there is a marginal return for a small effort, and the small improvements add up. They fight entropy, and they are the frontline protection against a fossilized legacy. But some of the most important insights come abruptly and send a shock through the project.

Domain-Driven Design, Eric Evans