Shrink Thinking
How the mind thinks, where it gets stuck, and how to think more clearly.
Overthinking (56)
Rumination
Thinking longer isn't always thinking better.
Decision Fatigue
Mental energy is spent one decision at a time.
Uncertainty
Catastrophizing
Catastrophizing mistakes possibility for probability.
Mental Filtering
Attention shapes emotional reality.
Emotional Reasoning
Emotions inform judgment. They don't replace evidence.
Analysis Paralysis
More information doesn't always produce better decisions.
Black-and-White Thinking
Reality is usually a spectrum. Black-and-white thinking compresses it into extremes.
Mind Reading
Assumptions often feel like facts. They're not.
Fortune Telling
Predictions are possibilities, not certainties.
Reassurance Seeking
Temporary reassurance can unintentionally strengthen long-term doubt.
Worry
Worry is preparation that often continues long after it becomes productive.
Cognitive Fusion
Believing every thought gives every thought unnecessary authority.
Cognitive Distancing
Distance improves perspective.
Thought Suppression
Fighting thoughts can unintentionally feed them.
Mental Replay
The past can be reviewed without becoming relived.
Mental Simulation
Mental rehearsal becomes helpful when it prepares rather than traps.
Cognitive Rumbling
Background thinking still consumes foreground energy.
Negativity Bias
The brain naturally overweights potential threats.
Cognitive Closure
The need to know can become stronger than the need to know accurately.
Intolerance of Ambiguity
Not every unanswered question has a missing answer.
Thought-Action Fusion
Thoughts are experiences, not evidence of intent.
Thinking Traps
Awareness weakens automatic thinking.
Mental Forecasting
Forecasts are estimates, not guarantees.
Intrusive Thoughts
An unwanted thought isn't the same as an unwanted intention.
Counterfactual Thinking
The past has many imagined versions, but only one actual history.
Affective Forecasting
People are often less emotionally predictable than they imagine.
Experiential Avoidance
Avoiding discomfort often strengthens it.
Belief Perseverance
Beliefs often outlive their evidence.
Availability Heuristic
The easiest memory isn't always the best estimate.
Anchoring Bias
The first number, idea, or impression often influences everything that follows.
Hindsight Bias
Knowing the outcome changes how we remember uncertainty.
Loss Aversion
The brain weighs losses more heavily than gains.
Sunk Cost Fallacy
Past costs shouldn't determine future decisions.
Status Quo Bias
Familiarity is often mistaken for safety.
Decision Avoidance
Avoiding decisions rarely avoids consequences.
Need for Control
The search for perfect control often creates greater distress.
Choice Overload
Abundance can become its own burden.
Information Overload
Knowledge has limits. Information doesn't.
Error Monitoring
Healthy monitoring improves performance. Excessive monitoring interrupts it.
Hypervigilance
A mind constantly searching for danger rarely experiences rest.
Threat Monitoring
Attention shapes perceived reality.
Optimism Bias
Hope is valuable. Accuracy is essential.
Pessimism Bias
Possible doesn't mean likely.
Self-Serving Bias
The mind often protects the ego before it protects accuracy.
Illusion of Control
Confidence doesn't create control.
Confirmation Seeking
The questions you ask determine the evidence you find.
Ambiguity Aversion
Uncertainty often feels more dangerous than it actually is.
Psychological Distance
Distance improves perspective.
Intolerance of Uncertainty
The unknown often feels worse than reality.
Decision Regret
Regret becomes valuable when it teaches instead of traps.
Cognitive Defusion
Thoughts influence you less when you stop treating them as facts.
Mental Time Travel
The same ability that helps us plan can also trap us.
Cognitive Inertia
Old thinking continues unless intentionally redirected.
Attentional Bias
Attention shapes experience before awareness does.
Overthinking
Thinking that feels productive but only loops without an answer.
Better Thinking (37)
Confirmation Bias
Beliefs often shape attention before evidence shapes beliefs.
Cognitive Flexibility
Mental strength includes the ability to revise your thinking.
Cognitive Load
Mental bandwidth is finite.
Working Memory
Your brain can only actively hold a limited amount of information at one time.
Cognitive Overload
Too much thinking can reduce the quality of thinking.
Attentional Residue
Your attention doesn't move instantly.
Metacognition
Awareness creates the opportunity for better thinking.
Cognitive Rigidity
Rigid thinking protects familiarity more than accuracy.
Cognitive Reframing
Perspective influences experience.
Cognitive Momentum
Where thinking begins often influences where thinking goes.
Mental Bandwidth
Capacity changes. Ability usually doesn't.
Cognitive Drift
Attention naturally drifts unless intentionally directed.
Outcome Bias
Good processes sometimes produce poor outcomes. Poor processes sometimes produce good outcomes.
Attentional Control
Attention becomes powerful when it becomes intentional.
Mental Models
Better models create better decisions.
Reflective Thinking
Reflection moves forward. Rumination circles.
Thought Labeling
Naming thoughts weakens automatic reactions.
Mental Clutter
An unorganized mind spends energy carrying what it could organize.
Cognitive Friction
Reduce unnecessary thinking to improve necessary thinking.
Default Thinking
An idle mind is usually an active mind.
Attentional Anchoring
Attention strengthens through returning.
Cognitive Calibration
Wisdom grows through continual recalibration.
Cognitive Noise
Clear thinking begins by reducing interference.
Mental Contrast
Optimism becomes useful when paired with honest assessment.
Cognitive Offloading
External systems protect internal thinking.
Attentional Capture
Attention follows perceived importance before conscious choice.
Prediction Error
Unexpected outcomes drive learning.
Deliberate Attention
Attention becomes powerful when it becomes intentional.
Cognitive Appraisal
Interpretation influences emotion.
Cognitive Reappraisal
Interpretation influences emotion.
Metacognitive Awareness
Awareness of thinking changes thinking.
Cognitive Entrenchment
Experience should expand thinking, not imprison it.
Cognitive Economy
Efficiency sometimes competes with accuracy.
Mental Availability
Capacity changes from moment to moment.
Self-Distancing
Distance often improves judgment.
Systems Thinking
The whole is often different from the sum of its parts.
Feedback Loops
Behavior creates the environment that shapes future behavior.
Decision Science (22)
Choice Architecture
Context shapes decisions.
Opportunity Cost
Choosing always means giving something up.
Expected Value
Probability matters as much as possibility.
Risk Calibration
Accurate risk leads to better decisions.
Utility
Value is personal.
Tradeoff Thinking
Every gain has a cost.
Calibration
Confidence should reflect reality.
Decision Quality
Good processes produce better decisions over time.
Base Rate Neglect
Probability matters before symptoms are interpreted.
Representativeness Heuristic
Similarity isn't the same as probability.
Cognitive Autopsy
Review your thinking, not just your results.
Cognitive Forcing Strategy
A cognitive forcing strategy intentionally interrupts automatic reasoning.
Second-Order Thinking
The best decisions account for future consequences, not only immediate results.
Exploration-Exploitation Tradeoff
Wise decision making balances learning with using what has already been learned.
Heuristics
Shortcuts make judgment fast and usually good enough, but they leave a trail of predictable errors.
Framing Effect
The frame around the facts often moves us more than the facts themselves.
Planning Fallacy
Plans imagine the best case, so they tend to run long and cost more.
Gambler's Fallacy
A coin has no memory, but we keep insisting the next flip owes us.
Mental Accounting
A dollar is a dollar, but the mental label we give it changes how we spend it.
Present Bias
The present shouts while the future whispers, so now usually wins.
Hyperbolic Discounting
Waiting feels cheap when it's far off and unbearable when it's near, so we reverse ourselves.
Framing of Gains and Losses
Call it a loss and we gamble, call it a gain and we play safe, with the numbers held constant.
Judgment (17)
Affect Heuristic
A gut feeling quietly answers the hard question we were supposed to think through.
Cognitive Ease
The smoothness of a thought gets mistaken for its truth.
Denominator Neglect
The count of what happened grabs us, and the size of the pool it came from disappears.
Narrative Fallacy
A satisfying story stands in for an understanding we don't actually have.
Conjunction Fallacy
Adding believable details makes a claim feel likelier while making it actually rarer.
Illusory Truth Effect
Repetition raises believability even when it adds no evidence.
Focusing Illusion
Concentrating on one factor makes it seem to matter more than it does.
Clustering Illusion
Random chance naturally makes clusters that we misread as meaning.
Illusion of Explanatory Depth
We feel we grasp mechanisms we actually can't explain.
Continued Influence Effect
Corrections rarely erase the pull of the original misinformation.
Texas Sharpshooter Fallacy
Picking the pattern after the fact turns chance into fake precision.
Decoy Effect
A deliberately inferior option makes a nearby option look like the smart pick.
Compromise Effect
The middle choice feels safe, so we reach for it by default.
Zero-Price Effect
The word free pulls us harder than any low price does.
IKEA Effect
Our own effort inflates how much we value the result.
Endowment Effect
Owning something makes us price it higher than we would pay for it.
Denomination Effect
Money in small denominations slips away faster than the same value in one big bill.
Clinical Reasoning (16)
Diagnostic Reasoning
Diagnosis improves as evidence accumulates.
Clinical Judgment
Judgment connects evidence with action.
Differential Diagnosis
Think broadly before narrowing.
Evidence-Based Medicine
Evidence guides care.
Clinical Uncertainty
Good clinicians manage uncertainty rather than deny it.
Prognostic Thinking
The future is estimated, not predicted with certainty.
Clinical Decision Threshold
Action begins when evidence reaches an appropriate threshold.
Clinical Bias
Awareness of bias improves judgment.
Clinical Debiasing
Question your first conclusion.
Diagnostic Momentum
Previous conclusions shouldn't replace current thinking.
Premature Diagnostic Closure
Premature diagnostic closure is stopping the diagnostic search too soon. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Search Satisficing
Finding one explanation can make us stop searching for better ones.
Diagnostic Overshadowing
One diagnosis should never prevent clinicians from recognizing another.
Diagnostic Calibration
Good judgment matches confidence to evidence.
Illness Scripts
Clinical expertise develops by building increasingly accurate mental models of disease.
Diagnostic Time-Out
A brief pause can prevent a long-lasting diagnostic error.
Memory (13)
Prospective Memory
Prospective memory allows future intentions to become future actions.
Retrospective Memory
Retrospective memory stores and retrieves previously acquired information.
Encoding
Encoding transforms experience into memory.
Reconsolidation
Retrieved memories may be updated before they're stored again.
Episodic Memory
Episodic memory stores personal experiences.
Semantic Memory
Semantic memory is the brain's knowledge library.
Procedural Memory
Procedural memory stores learned skills.
Autobiographical Memory
Autobiographical memory connects personal experiences into a meaningful narrative.
Semantic Satiation
Rapid repetition temporarily disconnects a word from its meaning.
Von Restorff Effect
The item that's different from its neighbors is the one we recall.
Misinformation Effect
What we hear afterward can quietly rewrite a memory.
Source Monitoring
We can remember something clearly yet confuse where it came from.
Flashbulb Memory
Emotional shock creates memories that feel exact but aren't.
Social Cognition (11)
Cognitive Dissonance
The mind hates holding two clashing ideas, so it bends one until the tension eases.
Motivated Reasoning
We use real reasoning, but we aim it at the answer we were hoping for.
Halo Effect
A single strong impression quietly colors everything else we judge about someone.
Just-World Hypothesis
The wish for a fair world can quietly turn into blaming its victims.
Actor-Observer Bias
For ourselves it was the situation, for others it was their character.
Priming
One cue can quietly warm up related ideas, shaping what you think of next.
Availability Cascade
Repetition turns a claim into a truth without ever passing through proof.
Bandwagon Effect
The size of the crowd becomes its own argument for joining.
Authority Bias
The badge does some of the convincing before the argument is even heard.
Ingroup Attribution Bias
The same act becomes virtue in us and accident in them.
Moral Licensing
A recent good deed quietly buys a permission slip for a later lapse.
Attention (7)
Salience
Attention follows perceived importance.
Sustained Attention
Sustained attention is the ability to maintain focus over time.
Selective Attention
Selective attention determines what enters conscious awareness.
Inattentional Blindness
People can overlook obvious events when attention is focused elsewhere.
Vigilance
Vigilance is sustained readiness for important but uncommon events.
Attentional Blink
Attention briefly becomes less available after processing important information.
Divided Attention
Attention divided across multiple tasks usually reduces performance.
Cognitive Biases (5)
Dunning-Kruger Effect
The skill you lack can be the same skill you would need to notice you lack it.
Overconfidence Effect
Our certainty runs ahead of our accuracy, especially on hard questions.
Curse of Knowledge
What you know so well becomes invisible, so you forget others don't share it.
Survivorship Bias
When you only study the survivors, everything they did looks like the secret to success.
Illusory Correlation
A few memorable coincidences can convince us of a pattern that isn't there.
Human Operating Principles (4)
Predictive Processing
The brain predicts first and verifies second.
Signal Detection
Good judgment separates signal from noise.
Bayesian Thinking
Evidence changes confidence.
Bounded Rationality
Reasoning always has limits.
Memory Effects (4)
Recency Effect
The end of a list stays freshest, so it comes back to us first.
Primacy Effect
What comes first gets rehearsed and remembered, so it lingers.
Peak-End Rule
The memory of an event is a highlight and a last frame, not an honest average.
Zeigarnik Effect
The mind keeps a light hold on what's still open and lets go of what's closed.
Cognitive Performance (3)
Executive Function
Good thinking requires good management.
Cognitive Fluency
Ease influences belief.
Processing Speed
Processing speed measures the efficiency of mental operations.
Dual Process (2)
Dual Process Theory
Thinking happens in two speeds, and knowing which one is driving helps you trust it or double check it.
Cognitive Miser
We default to the cheapest thinking that seems good enough for the moment.
Executive Function (2)
Set Shifting
The mind works best when it can shift strategies appropriately.
Task Switching
Changing tasks requires mental reorganization.
Patient Safety (2)
Diagnostic Safety
Safe diagnosis requires follow-through.
Diagnostic Error
Accurate diagnosis depends on sound reasoning and effective communication.
Perception (2)
Change Blindness
Attention determines whether visual changes become conscious.
Frequency Illusion
New attention makes ordinary frequency feel like a sudden surge.