What is feedback documentation?

Example: Your manager tells you in a 1:1 that your technical communication is strong but your cross-team coordination needs work. Two weeks later, you remember only that she 'said something about communication' — and you can't recall whether it was praise or criticism. You've lost the signal. If you had written it down within the hour — date, source, exact words, your emotional reaction, and the specific behavior referenced — you'd have a data point you could act on, track over time, and cross-reference against future feedback.

This concept is part of Externalization Mastery in the How to Think curriculum.