Hick's Law is decision time grows with the number of choices. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0363, within the Decision family. The core principle: decision time grows with the number of choices. 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
Decision time grows with the number of choices.
Plain-English Definition
Decision time grows with the number of choices.
Feynman Explanation
Optionality is a feature until it becomes a tax.
Core Principle
Decision time grows with the number of choices.
Mechanisms
Pending editorial review.
Decision time grows with the number of choices.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Why too many options paralyze.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Optionality is a feature until it becomes a tax.
Examples
- UX design and strategic option-set design.
- Why too many options paralyze.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
This element is common enough to feel like human nature and specific enough to be engineered around. The mechanism underneath it is straightforward: decision time grows with the number of choices. You can recognize it in the field by its signature: optionality is a feature until it becomes a tax. 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, why too many options paralyze. It is amplified whenever why too many options paralyze. Inside organizations that shows up as why too many options paralyze. 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 curate option sets before presenting them. Treat it as infrastructure. Once you can see it in your own system, most of the argument about culture resolves itself.
Famous Experiments
Pending editorial review.
Design Principles
- Curate option sets before presenting them.
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.
- Curate option sets before presenting them.
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 Hick's Law 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.
- CourseIncentives 101
The free ten-part primer on reading a payoff structure.
Questions about Hick's Law
- What is Hick's Law?
- Hick's Law is decision time grows with the number of choices. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0363, within the Decision family. The core principle: decision time grows with the number of choices. 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 Hick's Law?
- Why too many options paralyze. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0363).
- How is Hick's Law exploited?
- Why too many options paralyze.
- How do you design around Hick's Law?
- Curate option sets before presenting them.
- Which behavioral dimension does Hick's Law belong to?
- Hick's Law is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Decision", class "Mental Model". Its permanent identifier is HBT-COG-0363 and its evidence grade is B.