Success by Subtraction is progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0645, within the Decision family. The core principle: progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
Scientific Definition
Progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain.
Plain-English Definition
Progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain.
Feynman Explanation
Most plateaus are addition problems being solved with more addition.
Core Principle
Progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain.
Mechanisms
Pending editorial review.
Progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Portfolio pruning, headcount focus, strategy narrowing.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Most plateaus are addition problems being solved with more addition.
Examples
- Buffett's '20-slot punch card'; Jobs's product cuts at returning Apple.
- Portfolio pruning, headcount focus, strategy narrowing.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
The mistake with this element is treating it as irrationality. It is almost always a rational response to a payoff nobody wrote down. The mechanism underneath it is straightforward: progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain. You can recognize it in the field by its signature: most plateaus are addition problems being solved with more addition. Every element in the Cognition dimension changes the perceived payoff of an action before the action happens, which is exactly where incentive design has leverage.
How it gets exploited
Left undesigned, portfolio pruning, headcount focus, strategy narrowing. It is amplified whenever portfolio pruning, headcount focus, strategy narrowing. Inside organizations that shows up as portfolio pruning, headcount focus, strategy narrowing. The pattern is the same one Goodhart's Law describes: the measurable proxy attracts the effort, and the purpose behind it quietly loses funding.
How the Lab designs around it
The redesign move is to quarterly subtraction review: name one thing to stop in each life domain. The test of any redesign here is simple: after the change, can you name what the organization is now doing less of? If not, the payoff structure did not actually move.
Famous Experiments
Pending editorial review.
Design Principles
- Quarterly subtraction review: name one thing to stop in each life domain.
Measurement Approaches
Pending editorial review.
Evidence
Pending editorial review.
Pending editorial review.
The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
- Quarterly subtraction review: name one thing to stop in each life domain.
Pending editorial review.
Pending editorial review.
Interactive Mini Network
Click any neighbor to re-center the graph and follow the threads of connection.
Knowledge Graph Neighbors
Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.
How will I feel about this in 10 minutes / 10 months / 10 years?
Inattention or forgetfulness caused by low attention, hyperfocus, or distraction.
Forgetting to compare an offer with the next-best alternative.
Outcomes that could have happened but did not.
Overthinking a situation so that decision-making stalls.
The first number on the table silently sets the range for every number after it.
Tversky & Kahneman's classic: identical outcomes flip from 'risk averse' to 'risk seeking' when framed as lives saved vs. lives lost.
Our perception is shaped by what we selectively pay attention to.
Favoring suggestions from automated systems over conflicting human judgment.
A color appears different depending on adjacent colors.
Decisions are constrained by available information, cognitive limits, and time.
The ability to focus on one voice in a noisy environment.
Where Success by Subtraction is cited in the corpus
Essays, field guides, and diagnostics from The Incentives Lab that apply this element.
- EssayGoodhart's Law in the Real World
How measurable proxies capture judgment.
- EssayThe Perverse Incentives Hiding in Your KPIs
Cognitive shortcuts turned into scorecards.
- EssayAI Agents Inherit Your Incentives
How this element propagates into automated systems.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
- ReferenceThe incentive glossary
Definitions for every mental model, bias, and fallacy in the corpus.
Questions about Success by Subtraction
- What is Success by Subtraction?
- Success by Subtraction is progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0645, within the Decision family. The core principle: progress more often comes from removing the wrong things than adding the right ones — cut activities, commitments, beliefs, relationships that drain. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
- What is an example of Success by Subtraction?
- Portfolio pruning, headcount focus, strategy narrowing. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0645).
- How is Success by Subtraction exploited?
- Portfolio pruning, headcount focus, strategy narrowing.
- How do you design around Success by Subtraction?
- Quarterly subtraction review: name one thing to stop in each life domain.
- Which behavioral dimension does Success by Subtraction belong to?
- Success by Subtraction is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Decision", class "Mental Model". Its permanent identifier is HBT-COG-0645 and its evidence grade is B.