Spaced Repetition is spread learning over time for stronger retention. It sits in the Biology dimension (BIO) of the Human Behavior Taxonomy™ as element HBT-BIO-0077, within the Memory family. The core principle: spread learning over time for stronger retention. 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
Spread learning over time for stronger retention.
Plain-English Definition
Spread learning over time for stronger retention.
Feynman Explanation
The cramming session is real-time amnesia.
Core Principle
Spread learning over time for stronger retention.
Mechanisms
Pending editorial review.
Pending editorial review.
Spread learning over time for stronger retention.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
The cramming session is real-time amnesia.
Examples
- Language learning, medical education.
- Training program design.
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 operates in the Biology dimension — what does the body contribute?. You can recognize it in the field by its signature: the cramming session is real-time amnesia. Every element in the Biology 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, training program design. It is amplified whenever training program design. Inside organizations that shows up as training program design. 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 microlearning at intervals. Not workshops once a year. Design against it the way you would design against a known failure mode — assume it will appear, and price the exploit before someone finds it.
Famous Experiments
Pending editorial review.
Design Principles
- Microlearning at intervals. Not workshops once a year.
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.
- Microlearning at intervals. Not workshops once a year.
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.
Neural mechanism of learning — connections strengthened by repeated activation.
Memories are reconstructed each time we recall them, not retrieved intact.
Memory and skill consolidate during sleep.
Limited capacity holding-tank for current information.
Naming an emotion reduces its intensity.
Cumulative physiological wear from chronic stress.
Emotional override of rational processing.
Brain region tracking conflict, error, and effort.
We treat AI as more humanlike than it is.
Attention is the most contested resource in modern work.
Task switches leave cognitive residue that degrades performance.
Self-direction is one of the deepest motivational levers.
Where Spaced Repetition is cited in the corpus
Essays, field guides, and diagnostics from The Incentives Lab that apply this element.
Questions about Spaced Repetition
- What is Spaced Repetition?
- Spaced Repetition is spread learning over time for stronger retention. It sits in the Biology dimension (BIO) of the Human Behavior Taxonomy™ as element HBT-BIO-0077, within the Memory family. The core principle: spread learning over time for stronger retention. 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 Spaced Repetition?
- Training program design. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-BIO-0077).
- How is Spaced Repetition exploited?
- Training program design.
- How do you design around Spaced Repetition?
- Microlearning at intervals. Not workshops once a year.
- Which behavioral dimension does Spaced Repetition belong to?
- Spaced Repetition is classified in the Biology dimension (BIO) of the Human Behavior Taxonomy™, family "Memory", class "Neural Mechanism". Its permanent identifier is HBT-BIO-0077 and its evidence grade is B.