Hermann Ebbinghaus
German psychologist whose 1885 research established the forgetting curve — one of the earliest empirical studies of memory decay.
Spaced Repetition & Retrieval Practice
Spaced repetition and retrieval practice are the two evidence-based techniques for turning short-term exposure into durable memory. Spaced repetition revisits material at widening intervals.
April 28, 2026
The Forgetting Curve in Workshops
The forgetting curve describes the rate at which newly presented information decays from memory when it isn't actively reinforced. In a typical lecture-style workshop, where information is delivered continuously without opportunities for…
April 28, 2026
The 80/20 Workshop Engagement Ratio
The 80/20 engagement ratio is a session-design principle stating that participants should be actively working with material for approximately 80% of a live session, while the workshop leader guides, clarifies, and coaches for the remaining 20%.
April 28, 2026
How People Actually Learn
A workshop can end with glowing feedback and produce almost no behavior change a week later. That's not a motivation problem on the participant's side — it's a memory-science problem on the design side.
April 28, 2026