Feed Back
Route the output back into the system and leave the loop closed until the system has acted on it.
Formerly Feedback
The thermostat: the room's temperature switches its own heating.
Seen in Steve Reich, Pendulum Music, 1968
Try it on your work
Take the latest product of your work and make it the raw material of the next round: physically, directly, the output on the input's bench, for three loops. What amplified and what damped is the system's temperament.
End each working day by writing three lines on what happened, and begin the next by reading them before anything else, for one week. The instruction you kept writing to yourself is the loop's message; act on it or stop writing it.
Pick one measurement your project produces and wire it, by rule, to one decision it currently doesn't touch, for one cycle. The resistance you felt to obeying your own number is worth a line of its own.
How it has been used
Make the system hear its own output: the microphone facing the speaker, the thermostat, the writer reading their draft aloud. The move forces you to leave the loop closed long enough to act: sampling the output and ignoring it is monitoring, not feedback.
Where it leads
Grouped under Let it respond to what happens