📣 Announcing an experimental new tool for thought 🚨
and I have been wondering: what happens if we take powerful ideas from cognitive science and deeply integrate them into explanations? Our first experiment in a new "mnemonic" medium:
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Does this feel familiar?
1. You read a book and feel you understood it.
2. Next week, you try to answer a question about it.
3. Surprise: you don't remember the details at all!
It's not just embarrassing at a cocktail party: it's a real barrier to learning complex new topics.
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Happily, there's a way to remember anything almost effortlessly: spaced repetition. A few minutes each day—as much memory as you want. Magic.
But few people use it. Textbooks don't leverage it. Tools for it desperately lack design. What if we fix it up and build it into a book?
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One reason books are hard is: readers run all the feedback loops. "Did I really get that? Should I flip back?" This demands attention to both the content and also the meta.
We interleave prose and lightweight spaced repetition to take some of that work off the reader's plate.
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Excited to dig into this, both to see the format and to learn the material! You might have already seen, but made an article which attempts to use spaced repetition to teach you about spaced repetition: ncase.me/remember/
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Yes, for sure! It's lovely.

