The Five Lions of Memory Hacking

Ebbinghaus&Leitner& Pimsleur& Wozniak& Fogg.

Hermann Ebbinghaus

!1850-1905

The Original Memory Hacker.

The Inventor of the Forgetting Curve

Re

ten

tio

n

Time (Days)

Le

arn

Rev

iew

Rev

iew

Rev

iew

Which gave rise to Spaced Repetition.

Sebastian Leitner !

1919-1989

Father of the Modern Flash Card.

Developed the Leitner System

Set the pattern to optimize Practice Learning

Paul Pimsleur !

1927-1976

Memory’s Pace Setter.

Developed the Pimsleur language learning system.

Scheduled reviews on an Optimal Timeline

5 days, 25 days,

4 months, 2 years.

5 seconds, 25 seconds, 2 minutes,

10 minutes, 1 hour,

5 hours, 1 day.

Piotr Wozniak

Memory’s Programmer.

Developed the SuperMemo application.

Formalized Algorithms for Machine-aided

memorization.

dOF=dOFmax*a/(thalf+a) dOFmax=(OF-1)*(OI+thalf-1)/(OI-1)

B.J. Fogg

The Behaviorist.

Established the Trigger of

Behavior.

Set the pattern to motivate continued

good habits.

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