Reflexivity
Type: Systems & Dynamics
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Definition
Observation changes the observed. Beliefs shape reality, which shapes beliefs. Feedback loops between thinking and the world.
George Soros’s concept: Market participants’ biased views affect market outcomes, which in turn affect participants’ views. Not just reacting to reality — creating it.
Why It Matters
Markets: Predictions become self-fulfilling or self-defeating. “The market will crash” can cause a crash. Social systems: Beliefs about groups affect how they’re treated, which affects their behavior, confirming the belief. Science: Observer effect — measuring changes what’s measured. Politics: Polling affects voting. Media coverage affects events.
Two-Way Connection
Thinking → Action → Reality → Perception → Thinking
↑_________________________________________↓
Not: Reality → Perception → Action
But: Reality ⟷ Perception (mutual influence)
Examples
- Bank runs: Fear of insolvency causes withdrawals, causing insolvency
- Stock bubbles: Optimism drives prices, confirming optimism
- Stereotypes: Beliefs affect treatment, affecting outcomes, confirming beliefs
- Placebo effect: Belief causes physiological change
Implications
Prediction is harder: You’re predicting a system that reacts to predictions. Ethics matters: Your beliefs about people affect how they become. Humility required: You don’t stand outside the system observing; you’re part of it.
Related Biases
- [[Self-Fulfilling Prophecy** — Belief makes itself true
- [[Confirmation Bias** — Seeing what you expect
- [[Observer Effect** — Measurement changes system
Audio
Podcast episode: Reflexivity
Part of the Cognitive Bias Reference