The Spacing Effect — the research, and how to use it at events

The research, plainly

From Ebbinghaus's original forgetting curves to Cepeda's modern meta-analyses, the finding holds: distributed practice beats massed practice, decisively. Material revisited over spaced intervals survives; material crammed into one session decays within days.

The receipt: Ebbinghaus, 1885; Cepeda et al., 2006

What it means for events

The event is dose one — and on its own, it's on the forgetting curve by Friday. The Day-3, Day-10, and Day-30 touches aren't 'follow-up marketing'; they're where the learning actually consolidates. No spacing, no retention, no behavior change.

Where to run it

Post-event program

Three spaced touches, each one idea, each asking for retrieval — 'which play did you run?' — rather than re-sending slides.

Internal enablement

The SKO content returns in the Monday standup, week after week — the meeting cadence is your spacing engine.

Community & cohort

Monthly reconvenes with the same cohort turn a one-day event into a curriculum.

Seen in the wild

Duolingo built a language empire on spaced repetition; the corporate learning world's shift from 'training events' to 'learning journeys' is the same science arriving in enterprise clothes — and events that adopt the cadence inherit the retention.

Related concepts

The Question–Behavior EffectJust asking people whether they'll do something makes them more likely to do it.Implementation Intentions'I'll do it' fails. 'I'll do it Tuesday at 9, at my desk' works.Serial PositionPeople remember the first thing and the last thing. The middle needs help.

All 115 concepts in the Library →

Now use it

Score your own event against principles like this one — or make the whole vocabulary official.

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