• Interleaving 

    Most people study by blocking — drilling one topic before the next. Interleaving mixes Most people study by blocking — drilling one topic before the next. Interleaving mixes related types up instead, and on delayed tests it reliably wins. Here’s what the evidence shows, why it feels worse than it is, the mechanism behind it, and the honest limits of where it works. types up instead, and on delayed tests it reliably wins. Here’s what the evidence shows, why it feels worse than it is, the mechanism behind it, and the honest limits of where it works.

  • Forgetting Curve

    You finish a chapter feeling like you’ve learned it — and a week later most of it is gone. That’s not a bad memory; it’s the forgetting curve, a predictable pattern of memory decay that applies to almost everyone. Understand its shape and you can bend it, using the two techniques that actually make learning stick.

  • Spaced Repetition: The Evidence-Based Method for Retaining Anything

    Spaced repetition is the most evidence-backed learning technique available — and the one most systematically ignored. The Cepeda et al. (2006) meta-analysis of 317 experiments confirms it outperforms massed practice across all conditions. But the mechanism most people miss is that the benefit comes from the retrieval attempt, not the re-exposure. This guide covers the neuroscience, the correct Anki implementation, the 85% accuracy calibration rule, the sleep integration that multiplies retention gains, and the cholinergic supplement stack that supports memory encoding.