Can't help but feel this would produce an epicly poor signal to noise ratio.... No one cares about someone's keystrokes as thats attacking the wrong level in information hierarchy. Overall seems like a self indulgent academic effort (nothing wrong with that per-se but the real world doesn't need it). It's interesting to compare relative interest in this to Light table mentioned a few days ago
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.
