Retrieval · Part 2

Why so many people believe in active recall anyway — three cognitive biases that make a mediocre technique look like a silver bullet.

Key ideas

▸Dunning–Kruger: confidence peaks when you've learned a little (and don't know what you don't know). Many study influencers sit on that first peak.
▸Survivorship / success bias (the WWII bullet-holes story): people who fail with a technique never post about it, so you only see wins.
▸Availability bias: the more often you encounter a claim, the more legitimate it feels — a self-reinforcing spiral.
▸Together these make active recall / spaced repetition seem more effective than the evidence supports.
▸They aren't bad — a fine first technique and part of a system. Relying ONLY on them is refilling a bucket with a hole in it.

Stay open-minded about your study skills even when you feel confident.
If techniques haven't worked, reframe it: you didn't fail — you “tried really hard at the wrong thing”.

“when something is more available we think it is more legitimate”

“you've just tried really hard at the wrong thing”