Ask HN: Anyone using Anki/Spaced-repetition successfully?

16 points by Thursday24 ↗ HN
What has been your experiences with using Anki or other spaced repetition software to improve your long term recall? Has it impacted your practice, day to day life positively? If yes, what are the best practices with spaced repetition worked for you?

13 comments

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Spaced repetition is a beast! I know it from my experience w/o software. I have some experience with Anki which is one of default apps on one of Linux distribs, but it did not worked for me because I do not start it daily :) and to be honest I do not know what info to load and to not load in Anki. For me paper seems to be more handy because it is simpler to write in it something, to read several times what has been written and to abandon what has been learned or obsoleted.
I never managed to get any benefit from spaced repetition. I tried paper and anki.

I found I remembered more creating the cards than reviewing them. Creating the cards made me think about the information and understand it so I could create the card (back and front) in a beneficial way. Reviewing them was a waste of time for me, but the act of creating something with the information I was trying to learn worked wonders.

To be honest I found this with mind maps, concept maps, and nearly every single other way of presenting information in a way that is touted as a good way to learn.

Many people just want to use other peoples' Anki decks. They lose two big benefits:

- The brain activity from making a card assists your memory, possibly more than reviewing itself. Reviewing just enforces the memory even more.

- The more vivid/personal the memory, the easier it is to remember. I can still remember the exact moment 20+ years ago some Korean vocab was burned into my permanent memory. For example, Korean has a complex set of words for extended family that's hard for me to remember. After I met my real-life 이모, I never forgot it means "mother's sister."

The book Fluent Forever[1] focuses on efficient language learning, where SRS plays an important role. Gabriel has done a lot of research on learning and the human brain; many of the techniques can be extended beyond language learning.

[1]: https://www.nateliason.com/notes/fluent-forever-gabriel-wein...

There was a point when I was learning and retaining so many new French words that I added on Chinese just to see what my limit was. It may be the optimal way to memorize as much information as possible, but ultimately I suspect that most of the heavy lifting is being done by just showing up and doing the work.
Using Anki for about four years on and off, 1.5 years consistently while learning Chinese, my advice is:

1. Don’t be too hard on yourself. Some months I review 10-20 new cards a day; this month, I was busier than usual, so I changed it to 1 new card a day. There’s no rush.

2. For languages, sentences are drastically more helpful to have as cards than single words. I find it much easier to learn a whole sentence than just a word.

3. I have a mix of my cards and pre-made ones (e.g., Vocab from my textbook).

4. It's OK to let a card be a leech and to forget about it. If a card was a leech, I’d just let it go. It's not school, the goal isn’t to get 100%, its just to use as another resource.

5. I use Anki along with 2-3 other apps AND a private teacher. I treat it like an additional resource, not the end all be all.

I wrote this two years ago: https://camilomatajira.wordpress.com/2020/05/05/my-most-prec...

Anki is great. However I am getting a little bit tired after the years. I now use it more as my knowledge base.

This inspires me to start creating cards as well.

> Today, my Anki has 4415 cards and grows everyday. I have spent 186 hours studying, I have made around 35K card reviews.

Do you have any personal reflections on what sort of cards worked for you, and how you'd chunk the information or any other tips in using it?

My main tip would be: whatever is important for you, should be placed into Anki. We, men forget everything. Specially important useful things. Women never forget, specially married ones, that's why they don't use Anki haha.

I would also suggest to try to create plain text cards. In the future it would be easier to search for material that you know is there but that you don't recall exactly.

I’ve been using SuperMemo for 16 years, do my cards every day (just finished today’s cards about 20 mins ago). Super useful for obvious stuff like languages, but also very useful for more subtle stuff you want to keep in your brain; you basically have a “remember forever” button in your life, which you can use for useful information you encounter online, facts about loved ones, jokes, scientific concepts, cognitive biases you are prone to, basically a little bit of everything. Spaced repetition is a very effective tool, but it’s overall usefulness depends on the self discipline and willingness of the user to recognize their own memory related shortcomings. You can live an entire life without spaced repetition and be just fine, but once it clicked in my head how effective spaced repetition was, I couldn’t not be obsessed with it. The feeling of being able to know what you know, and to rely on that knowledge being there, it feels like when Thor reaches out his hand and Mjölnir just flies into it with no effort on Thor’s part. It feels so great!
As far as daily life goes, I do my reps in the morning and don’t really use SuperMemo much throughout the day. I have a text file in the Notes app on my phone where I write stuff that I want to remember and then I add those flashcards when I’m watching YouTube or a TV show with my wife. Fun evening activity to do. I have 110,000 flashcards so far.
> I have 110,000 flashcards so far.

When you're doing your daily reps, do you tackle a particular category each time or is it completely randomized?

> useful information you encounter online, facts about loved ones, jokes, scientific concepts, cognitive biases you are prone to

What other topics?

Nope, doing reviews where topics are totally randomized (Called stochastic review) has been easier for me in the long run because I don’t have to categorize things, I just shovel them into SuperMemo and review them when their time comes. One skill you acquire while doing this is you learn how to quickly establish context for an idea since you can’t rely on contextual groupings when you’re doing your reviews. This has helped me learn to summarize information quicker because long term you will be asking yourself “If I don’t see this flashcard for three years, does this question establish enough contextual information that I can answer it?” Most flashcards are only one or two sentences long, since reading a paragraph to review a single card is really monotonous. As far as what info do I remember with it, it started out purely for language stuff, then I started using it for job info, then started using it for more “high class” information like history or science, but also experimented with idioms in foreign languages and then jokes in my mother tongue (English), which has been a lot of fun. I’m pretty convinced that if someone really committed to it, you could learn to be a really good comedian or freestyle rapper by using spaced repetition.
I started using it about a week or two ago after someone linked a post called "Augmenting Long-Term Memory"[0] in another thread here. I've been reviewing daily and have already noticed knowledge that I was beginning to forget feeling refreshed and more solidified. For example, I used to be very familiar with the oauth2 protocol after having to implement a compliant service a couple of years ago. But I realized that knowledge was beginning to slip. After "Ankifying" some of the parts of the protocol that I thought were most useful, I have a good grasp of it again.

Since then I also started going through the ActivityPub protocol and Ankifying that, too. I'd scanned it a couple of times before and started building an implementation for fun, but I feel like Anki helped me grasp it better. I also don't have to refer back to the doc as much as I used to. Aside from the reviewing itself being useful, writing the actual cards has been very useful as well (but I kind of expected that, since writing/blogging has long been my preferred way of reinforcing new learnings).

I've Ankified different kinds of things so far, all in one deck. From details of auth flows to git commands (so I no longer have to Google each time I need to remember how to delete a remote tag or reset a git author).

[0] http://augmentingcognition.com/ltm.html