Definition
A feedback loop is any signal that tells you whether what you just did worked, so that the next attempt can be adjusted.
Why it matters
Without feedback, practice is guessing; with feedback, every attempt carries information that compounds into improvement.
Scientific basis
Control-theory and motor-learning research show that the speed and accuracy of feedback is a primary determinant of how quickly a skill is acquired.
How to apply it
- Identify the fastest, most informative feedback available for your skill.
- If the natural feedback is slow, build a faster proxy.
- Make feedback a non-negotiable part of every practice session.
Common mistakes
- Practising in domains where you never see outcomes.
- Ignoring feedback that is uncomfortable or unflattering.
- Relying only on external feedback instead of building self-monitoring.
Examples
- A musician records every practice session and listens back.
- A coder runs tests after every change to see immediately what broke.
Related concepts
- Deliberate Practice (is a foundation for)
Deliberate practice is defined by its tight feedback loop. - Calibration (complements)
External feedback calibrates internal judgement over time.
Where it shows up
Domains: programming, creative-skills, professional-skills. Appears in the Project-Based Learning cluster alongside 3 other concepts.
Source books
- Ultralearning: Scott Young
- Make It Stick: Brown, Roediger & McDaniel
Articles that use this concept (7)
- How to Get the Most From a Coach or Teacher: feedback loops learning
- Build a Feedback Loop When You Work Alone: feedback loops solo
- Use a Learning Buddy: learning buddy
- Use Feedback From Failure: feedback loops failure
- Use Teaching to Accelerate Your Learning: teach back learning
- Build a Learning Co-op: learning co-op
- Small Teaching Helps the Teacher Most: teach small audience