Learning & talent
Skill half-life
A skill you stop using does not fade in a straight line. It decays like a half-life: fast at first, then slow. Pick how sticky the skill is and how long it has been, and see what you have left and how cheaply you can keep it.
- Still retained
- 50%
- Status
- Half gone
- Stay sharp by reviewing every
- 4 wks
A short, deliberate review resets the clock. The cheapest time to refresh a skill is just before it goes rusty, not after it is gone.