Rework isn't inherently bad; it depends on the intention. When rework is intentional, it's iteration, and it's a good thing. It allows us to revisit and enhance our work with new insights, leading to excellence because [[Excellence is repeated goodness]]. On the other hand, unintended rework is just correction, stemming from mistakes, misunderstandings, and overlooked details. This type of rework is inefficient and wastes valuable resources like time, money, and effort, which could have been saved with better planning and execution. The [[Opportunity cost]] can be quite high.