[markm208]

All keystrokes are recorded but that is not the main form of documentation created. A developer creates a playback of only the 'interesting parts' of the code and provides a narrative about why they think it is interesting.

Then, when someone looks at some unfamiliar code they can search to see if there is a 'story' about that bit of code. The code and the narrative playback side by side. The noise can efficiently be bypassed.