Too Long; Didn't Read
A deep-dive into iteration planning and predicting how long something will take is difficult. Developers are atrocious at estimating how long a task will take. Standish Group found that only 29% of projects were completed on time given contemporary agile development practices. Even straightforward tasks like this will eventually succumb to an unprecedented “blow up” and require much more development time than we planned on. This is what’s commonly referred to as “the blowup factor” The blow-up factor is inevitable.