This progressive accumulation of knowledge is almost the entirety of the Blue Prince (I recommend that one early room have a notebook at hand; fill in several pages). These moments tend to feel big, and some even have very atmospheric cutscenes that break the routine of drafting the door after the door. It also collects passwords and codes that remain the same throughout the execution. Mainly, every new draft is the question of what you will learn about real estate and how you will apply that knowledge in future executions.