EDgilty suggests that we strive to favor adaptability over rigidity. When we work in a series of small incremental changes, each increment of work will inform the next, with plenty of space for feedback, which should naturally lead to regular, small, manageable adaptations in our plan based on our growing knowledge. Through a metaphor of estimating the time to reach a destination, we get a feel for why adaptability is an outcome of working incrementally, and both an outcome and reinforcer of regular feedback.