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Posted by thomascountz 2 days ago

Hashcards: A plain-text spaced repetition system(borretti.me)
392 points | 186 comments
btilly 2 days ago|
I think that the real power of spaced repetition is not in flashcard applications like this. It is in behavior modification.

Let's take a real example to show how this works.

August 19, 2025. My wife called me in to help her decide what to do about a dentist that she thought was ripping her off. A couple of quick suggestions later, and she went to being mad at me about not having heard the problem through before trying to fix it badly. As soon as she was mad, I immediately connected with how stupid what I did was, and that this never goes well. But, of course, it was now too late.

Not a mistake I was going to make for a while. But, given my history, a mistake I was bound to make again.

I changed that. This time I stuck this into my spaced repetition system. Each time the prompt comes up, I remember that scene, holding in mind how it important it is to emotionally engage, not offer quick suggestions, and be sure to listen to the full problem in detail. It takes me less than 30 seconds. Reviewing this prompt, for my whole lifetime, will take less than 15 minutes of work. Just typing this up this time takes more work than I'll spend on it in the next several years.

This mistake hasn't happened since. Not once. And I believe it won't again in my life.

I have literally changed dozens of such behaviors. My wife says that it is like there is a whole new me. She can't believe the transformation.

All it took is looking at spaced repetition as general purpose structured reinforcement, and not as just a way to study flashcards.

0cf8612b2e1e 2 days ago||
I love this example because the correct, wise approach is so alien to my mind that I do not know how to respond to such situations. I am a professional problem solver, you described a problem, yet you do not want it solved? Just talk about it being annoying, like an immutable facet of the universe? Should I retort about my grievances with gravity making roof repairs a bear?
BeetleB 2 days ago|||
> I am a professional problem solver, you described a problem, yet you do not want it solved?

This will be hard for you to believe, but I will easily wager good money that at times you yourself behave this way. You only become aware of it after both below are satisfied:

1. You've encountered someone as annoying as yourself :-)

2. You learn a bit more about the dynamics of conversations.

If there's any time someone got mad at you and said "You just want to complain and not fix the problem!" chances are this dynamic was in play. Or "I've given you so many suggestions but you don't want to fix the problem and just complain!"

Everyone acts that way to some extent. Some more than others.

Here's a typical scenario (common amongst spouses, but even amongst friends). You're annoyed/down due to problem X. Your friend sees you that way and inquires why you're down. You tell them, and they spend all their time giving you suggestions. But you never asked for suggestions!

It's not a big leap to go from there to someone simply telling you their problem because they want to get it out of their system.

Some books I've read that made it easier to understand all of this:

- Difficult Conversations

- Nonviolent Communication[1]

- Crucial Conversations

All of these will emphasize the role emotions play in dialogue. And when you read them, chances are very high you'll find yourself in them (i.e. they will give examples that you can relate to - on both sides of the conversation).

Once I read these, many, many "poor" conversations from my life earlier suddenly made sense to me. One nice outcome was learning that even though at times people were upset at me, it wasn't always "my fault". I had always taken for granted that because I didn't spend much time playing social games, that my social skills were poor and likely I did something wrong. Reading these made it clear how often the dysfunction was on the other side, and having good/poor conversations is not well correlated with "social skills".

[1] HN has as strong knee jerk reaction when this book is mentioned, but in my experience, everyone who complained had not read the book, and almost all the complaints were semi-strawmen.

notpushkin 2 days ago|||
> 1. You've encountered someone as annoying as yourself :-)

> 2. You learn a bit more about the dynamics of conversations.

This is the last thing I expected to find under a post about an SRS, but I think I’ve just gone through this over the course of this year. (I knew I was extremely annoying at times, but didn’t realize how much annoying I was, and what to do. I think I know now :’)

Love HN for weird tangents like this. Thanks for the reading list!

fercircularbuf 2 days ago|||
Thank you for this post and your suggested readings!
furyofantares 1 day ago||||
In what way are you a professional problem solver such that it applies to random problems in peoples' lives?

The thing that drives me nuts is when people start throwing out immediate ideas, sometimes before I've even given a full account of the problem. But even if they do wait, I don't feel like explaining why all your immediate ideas don't work - most of the time, I've also already thought of those things. Try asking questions instead.

scotty79 1 day ago||
There's value to anyone willing to listen to you talking about your problem. Otherwise rubber duck debugging wouldn't work.

Why don't you ask some questions about their obviously wrong solutions instead od spoiling the fun they have guessing? After all to are the one with a problem.

IAmBroom 1 day ago||
"After all to are the one with a problem."

Please edit this so it says whatever you meant.

scotty79 1 day ago||
Sorry, fat fingers on a touchscreen ... What I meant to write was "After all you are the one with a problem." Apologies for being uncharitable. I was in a rough mood when I wrote that.
furyofantares 6 hours ago||
FYI I didn't take it as uncharitable, it's all good.
mehagar 2 days ago||||
The way I approach these situations is by reminding myself that the speaker is implicitly making a request - a request for empathy or understanding. While it's tempting to try to solve their problems, what they really want is for their feelings to be heard.

"Oh, that must have been frustrating."

IAmBroom 1 day ago||
THIS! And realizing this is a major step forward for many men in learning to better communicate with women (a stereotype, sure, but one that has many true instances IME).
hiAndrewQuinn 1 day ago||||
> I do not know how to respond to such situations.

>I am a professional problem solver.

As it so happens, you can probably apply the latter to solve your knowledge gap re/ the former.

Unless you don't actually consider it a problem, but a facet of your personality or something. Valid. But, if you are capable of applying that thinking to yourself, why are you not able to extend the same grace to others, and wait until you're asked for a solution?

btilly 2 days ago||||
You may enjoy, It's not about the nail. https://www.youtube.com/watch?v=-4EDhdAHrOg

What I was doing is very common. Trying to engage logically with what logic can engage with, while failing to recognize that the emotional challenge is what has to be dealt with first. And that once feelings are out of the way, the logical problem will be massively easier to solve.

thomascountz 2 days ago||||
It's important to remember there's no "right" or "wrong," it's all about connection.

If a stranger says, "my bike tire is flat," in most western cultures, they might very well be asking for your help to reinflate their tire.

If your loved one says the same, well you have a lot more context to fill in their subtext with. If they're displeased with your reasonable attempts to help them—like you'd help a stranger—it might mean that they were asking for something else. Finding out what that "something else" is, and adapting to each other's differences in "what was said" vs "what was heard," is part of what it means to build a connection with someone.

ccppurcell 2 days ago||||
Yeah it's insulting. It would be very long and boring to list all the things I thought of and discarded, just to ward off such attempts at help. If someone doesn't ask your advice, don't give it.
RealityVoid 2 days ago||||
I feel you, I totally do. I get wanting to vent and wanting to be heard but solutions should come first. Honestly, when I hear people annoyed about offering solutions I get their need to engage with them differently but I also kind of believe they have a dysfunction about how they relate to the world.
btilly 2 days ago|||
This attitude reminds me of another phrase that I've internalized.

Choosing to be right, is choosing to be alone.

Whatever you choose to put above trying to get along with others, limits who can be part of your group. In the extreme, you will feel absolutely justified. And yet be absolutely alone.

As an example, language communities that focus on being able to find the ideal way to program (eg Lisp) tend to splinter. The languages that achieve broad acceptance (eg Python) do things that most people recognize as bad.

This doesn't mean that we should always choose to get along, rather than being right. But failing to address emotions up front has damaged so many parts of my life, that I firmly wish that I hadn't stood for so long on how right my behavior was.

I hope that your choices are working better for you than my past choices did for me.

BeetleB 1 day ago|||
> Choosing to be right, is choosing to be alone.

And as another commenter put it:

> You can be right, or you can be happy.

Are both invoking a false dichotomy. I phrase it differently:

"Put the focus on being useful, not on being right."

One often can be both right and useful. More importantly, being useful often means ignoring (minor) wrong things.

I had a coworker who focused on being right to the extreme. When someone would get stuck on a technical problem, he was masterful in being correct without helping the other person. He wouldn't look at the bigger picture, and wouldn't spend time trying to understand the other person's goals beyond the immediate problem he was facing.

Often, the person seeking help was phrasing things poorly (because of a poor understanding), and instead of diagnosing the problem, he'd just focus on what was said and provide a very correct and useless answer.

I was like that (perhaps I still am), just not to as extreme degree. The difference was that I wasn't as annoying in being correct, and people were comfortable in telling me "Yes, but none of what you said is helping me!" at which point I was forced to understand the bigger picture.

So: Before jumping to be right, focus on the real problem, and solve that (i.e. being useful). Forget the little minor incorrectness that was presented to you. Dwelling on correcting it is helping no one.

btilly 1 day ago||
Interpreted literally, my version is clearly false. But when combined with my explanation of how I think about it, I don't believe it is false.

More importantly, to me, it engages me with the exact tradeoff that I have found myself choosing between. I find it helpful to make the choice explicit, rather than implicit and driven by emotion.

If your version works for you, then great. But for me, prioritizing useful over right, begs the question of what useful means, and who gets to define it. The answer to that situation isn't currently obvious to me. I've spent most of my life putting one foot in front of the other, chasing fairly clear goals. And now I'm trying to figure out what goals I should even be chasing at the moment.

It may be that your version might appeal to some future version of me. But for present me, my version is far more directly relevant.

BeetleB 1 day ago||
> If your version works for you, then great.

I'm not sure that our versions differ.

> But for me, prioritizing useful over right, begs the question of what useful means, and who gets to define it.

The other party, generally. What I meant by "being useful" is to begin with finding out what the other person needs. What problem are they actually trying to solve? It could be a technical problem different from what they came to me with. It could be that they just wanted to vent and relate something (in which case it totally is not helpful to point out many of the (e.g. technical) mistakes they made in their narration). Being useful can be something different from all of the above.

My point was that when the focus is on being useful, you are more likely to ask yourself "How do I know my behavior/response is actually helping them?"

One can easily be right and yet not solve anyone's problem.

btilly 1 day ago||
I find this an interesting conversation, but don't want to continue it in public.

If you want to take it offline, my email is in my profile.

RealityVoid 2 days ago||||
I understand the need to engage people at the emotional level and meeting them where they're at. I just refuse to label this behavior as being constructive, desirable, something to cultivate and protect.

I see this "complainy" way of engaging as unproductive and i treat it the same way I would treat my kid when having a tantrum, I accept it, I listen to him, I am understanding of his state and his emotions, but I also nudge, coach and hope they develop healthier and more constructive ways of dealing with their problems.

BeetleB 1 day ago|||
> I just refuse to label this behavior as being constructive, desirable, something to cultivate and protect.

> I see this "complainy" way of engaging as unproductive

You are merely defining "constructive" and "productive" to whatever suits you.

> I get wanting to vent and wanting to be heard but solutions should come first.

One thing I learned after learning all these skills (later in life), is to openly tell others "The word 'should' is not in my vocabulary."

should is usually a means to be lazy in explaining your thought process. Why should solutions come first? What problem are you trying to solve, and why that problem? Understand that addressing emotions is solving a problem - it's just a different one from what you're trying to address. Solving that problem (well) often results in fewer problems down the road. The one you're trying to solve likely won't.

To directly address the topic - solving the emotional problem first makes them more open to listening to your (other) solution.[1]

> but I also nudge, coach and hope they develop healthier and more constructive ways of dealing with their problems.

Tip for the future: Being judgmental is going to negate most of your efforts. There's nothing wrong with nudging people down a path you feel is right. There is a problem in labeling the behavior as "unconstructive".

And, as I said in another comment, I'd wager good money that your behavior is not particularly different. You may not do it as often as the people you speak of, but you do do it - and you won't recognize it until you dig deeper into understanding the bigger picture. Once you do (as I did), you'll find plenty of examples in your life - past and present - where you behaved in the same "unconstructive" way, and didn't realize it.

(And in the off chance you have realized it, and criticize yourself for those past trespasses, you are putting a barrier to improvement).

[1] And yes, that's true even for you! You merely have to go back to your life where someone told you something (that you later found to be correct) and you didn't follow it, and ask why. There are multiple reasons people don't, but this is one of them. Distrust, dislike, disdain, etc lead to devaluing things others say.

iamnothere 1 day ago|||
For what it’s worth, I agree with you, and my partner has a similar outlook. There are people in the world who prefer to live life from a perspective of truth seeking and open inquiry. Don’t let anyone gaslight you into thinking that this is a flaw or that you should fundamentally change yourself for the sake of the average person!

It’s important to be able to navigate these conversations professionally, but there’s no reason to be overly close with people who you don’t naturally mesh with.

jkhdigital 2 days ago||||
I often hear a different version of that quote: You can be right, or you can be happy.
btilly 2 days ago||
One of the reasons of my version is that it points my attention at the actual decision - would I prefer to be right, or to cut this person off? The answer isn't always to please others.
LanceH 1 day ago|||
Who is the one choosing, though? I think it's the one who brings another person into the conversation with a problem begging for help that turns on that same person for trying to make the situation better. That is the person who needs to be empathetic when they are the one seeking help. But apparently we live in this bizarre world where emotions are always right.
btilly 1 day ago|||
It looks like you are passing judgement on the OP's situation.

As the OP, I can confidently tell you that you are absolutely in the wrong. You do not have sufficient information to pass this judgment.

I was emphatically not, "trying to make the situation better." Though that was the excuse that I would have made for myself. I was distracted, and wanting the problem to go away so I could get back to something else. (Which was rather less important.) I was throwing out suggestions before I had heard enough to say anything that had any chance of actually being useful. And if my mindset had been, "trying to make the situation better," I would have absolutely realized that.

IAmBroom 1 day ago||||
Problems don't beg for help. People do.

And in this general scenario, you are assuming that you are being begged for help every time someone describes a problem to you. Literally, they are not. Maybe they are implying that request; maybe they are communicating something else instead.

I assure you that your general assumption is false, sometimes.

iamnothere 1 day ago||||
In the worst case you have some people who only want to transmit their own negative emotions to you. The don’t want to solve the problem (but will get angry if you don’t attempt it), they won’t accept empathy (or will use it as bait for subtle personal attacks), and they divert any and all conversations back to their own personal issues. The listener is not at fault in this situation!
btilly 1 day ago||
As the OP whose situation was being described, I guarantee that my wife is very far from the worst case. If she was, we would not be married.
IAmBroom 1 day ago|||
A second reply, to a second comment.

> But apparently we live in this bizarre world where emotions are always right.

No, but we do live in a world where emotions are always important. So much so that highly productive and well-beloved people commit suicide sometimes, in the extreme cases.

Emotions matter, certainly, or at least yours do - to you. When others' emotions also matter to you, you move beyond infant-like narcissism, and become a potentially productive member of society. Not productive in the sense of number of lines of code written, but in the sense that you are treasured, looked after, and sought out by others simply for yourself.

tbossanova 1 day ago|||
If solutions always come first then you might never get a chance to vent. Maybe venting clears the annoyance from the brain enough to make it easier to understand any solutions that might be offered. Also sometimes I have been offered solutions that seem obvious to me, like did you really think I hadn’t thought of that? Which is especially piquing haha
RealityVoid 1 day ago||
> Also sometimes I have been offered solutions that seem obvious to me, like did you really think I hadn’t thought of that? Which is especially piquing haha

Yes, but that's still a solution minded thing. I sometimes complain as well, but, as mentioned, as sort of a rubber ducking method. I listen to the proposals again, I go, nah, tried that, It leads to X, that doesn't work because of Y, but, sometimes, even with these obvious solutions, there are tiny aspects I overlooked or bypasses I did not consider, so this is still potentially useful. And, yes, if we both can't find a solutin that is acceptable, then comiseration is in order. But I'd never manifest anger or disapproval about someone wanting to help.

knowsuchagency 1 day ago||||
It’s just like in programming interviews—sometimes you need to clarify your understanding before diving into potential solutions
scotty79 1 day ago|||
> I am a professional problem solver

The question is, do you want to be anything more than that?

Even as a problem solver you might ask yourself, what should I do in any given interaction to not become the additional secondary problem myself.

ropable 2 days ago|||
I wanted to chime in to say: this is me, I do/have done this, and am also seeking to change this behaviour. It has never once occurred to me to try using spaced repetition for something like this, so thank you to putting the suggestion into my brain! I intend to put this into action as soon as I'm able to.
thomascountz 2 days ago|||
This is really inspiring. Doing whatever you gotta do to be a better support for your loved ones is commendable.

Can you give an example of what you record in your SR system? Is it the anecdote itself? Do you generalize the pattern? Is there a "front" and "back?" A cloze?

btilly 2 days ago|||
My prompt for that is, When did I last dramatically fail Kate at decision support?

Recalling the scene and the details is part of the exercise.

I do the visualization while journaling about it. Here is an example of what that written record looks like.

Aug 19, 2025. She was stressed because she thought that Phoenix’ dentist was ripping her off. A couple of quick suggestions later, and her meltdown was not about how bad I am at decision support!

Kate is able to come to the right decision. She wants someone to listen to her, be there emotionally, and not offer suggestions unless they have a lot of context. But first, second, and third, make her feel listened to.

Note. This is tied to a visualization that causes me to connect to the right emotion at the right time. So I not only won't do the wrong thing, but I'll also be doing the right thing.

EE84M3i 2 days ago||
How do you grade a card like this?
btilly 2 days ago|||
The entire idea behind "grading" doesn't work.

I simply space on a Fibonacci sequence, and the fact that it is overkill for being able to answer is a feature. Because my goal is to react the right way in similar situations, not to get an answer right on the written test.

spankibalt 2 days ago|||
One could grade how close or accurate one's reaction was to "reacting the right way in similar situations", which was the stated goal:

> "Because my goal is to react the right way in similar situations, [...]."

btilly 1 day ago||
I seek that kind of grade in separate prompts telling me to review for that issue.

Those reviews are generally conversations with my wife.

I'm happy to say that I've been passing with flying colors. (Mixed with some regrets that I didn't start this many years ago...)

vannucci 2 days ago|||
Definitely want to talk about this too. I've been thinking of my own daily learning through tools like Anki and trying to devise a sort of "life stack" where I'm adding stuff and refreshing myself on it and this top comment from OP just sort of crystalizes that.
jkhdigital 2 days ago|||
Love this example. I started putting my Kindle highlights in the SRS—no prompt or anything, just the quoted text verbatim—and the effortless periodic review essentially burned the quotes in my memory for easy recall in moments when they were appropriate.
jwrallie 2 days ago||
Did you know there is a limit on how many highlights you can record? It is a setting in the DRM of Kindle books.

If you are reading a book with DRM, marking things and planning to load them into SRS later, take care as it silently stops saving the highlights as text.

_acco 2 days ago|||
So cool. Would love to hear more - What app do you use? How often do you clear your inbox and how long does it take?
0xdeadbeefbabe 1 day ago|||
And how did the dentist fare?
btilly 1 day ago||
The dental work that was needed, negotiated in advance, and paid for, happened.

The dentist's exorbitant rate on nitrous oxide (which we were not informed of in advance) was successfully renegotiated.

Unsurprisingly, my initial suggestions were in no way helpful to discovering this solution to the problem.

epolanski 2 days ago|||
Interesting example with some questionable couple dynamics.
seizethecheese 2 days ago||
Looks really healthy to me. It’s unhealthy when a partner can’t recognize that they actually were at fault and try to change, but instead needs every fight to resolve with “we were both wrong”.
btilly 2 days ago||
To add color, this is an interaction that started with one person being stressed. Expecting ideal behavior out of a stressed person is unreasonable.
IAmBroom 1 day ago||
You sound like a terrific Significant Other: willing to look inwards to see how you contributed to the problems the couple is having, and working to improve in the future.
btilly 1 day ago||
Thank you. That's what I'm trying to be.

However I'm also a work in progress. I spent a long time being significantly less than terrific...

wisty 2 days ago||
> A couple of quick suggestions later, and she went to being mad at me about not having heard the problem through before trying to fix it badly

Sounds like you're not the only one at fault lol.

Do you get mad at your wife if she offers suggestions before emotionally connecting? And would it still be too late even if she realises how "stupid she was"?

malnourish 2 days ago|||
Yes; well, I might not get "mad" at my wife, but I might emotionally disengage or feel like I lack closure were I to explain a situation to my wife and she responded with solutions before I even had the chance to finish.

It took me a long time to realize this. Actually, I've just now realized it clearly. Our emotional expression and the scenario may be a bit different, but it's fundamentally the same concept.

magarnicle 2 days ago||||
Part of the reason offering suggestions is 'wrong' is because it implies that they haven't tried to think of solutions to their problem. You are unwittingly implying that you are smarter than they are, even if that is not your intention.
tbossanova 1 day ago|||
Yeah. Step 1 is basically to say “damn, that sucks … what do you think you might do?” (or other clarifying questions).
wisty 1 day ago|||
If feel like only someone who is kind of dumb or insecure would think that ...

Smart people will even talk to a rubber duck to solve problems, because sometimes there's something obvious you missed.

IAmBroom 1 day ago||
You just labeled a large portion of humanity "dumb or insecure". Yay you.
wisty 1 day ago||
Am I wrong? (Apparently hn eats unicode emoji ao I can't do the bowling ball and pins wmoji :( )
seizethecheese 2 days ago||||
What’s the point of this? One only can control one’s self. Who cares if the other person was in the wrong too.
wisty 1 day ago||
What is the point in replying to me then?

Maybe you should take action if you think someone else is in the wrong? You did.

IAmBroom 1 day ago|||
So what? She isn't replying, and he* isn't talking about her faults. The story is about his introspection and self-correction.

*Assuming poster's gender.

tpoacher 2 days ago||
I don't mind people comparing such projects against Anki, this is natural since Anki is quite dominant in this space, but I feel like every criticism of Anki on that list was either highly subjective, exaggerated, unfair, or outright wrong and unkind (in a "one does not climb a ladder by throwing others off it" manner). Not saying this is what Fernando intended to do here, but his sharp opinion does come across a bit like it here.

Personally, I find the interface is extremely functional; the ability to have deck hierarchies to be a massive feature, not a bug; the WYSIWYG being the default being obvious given the intended audience, but one can still easily edit a textfile and import it or edit in html mode directly if desired; converting something into latex math is as simple as enclosing it in "[$] ... [/$]" and hardly the nightmare it's portrayed as; and finally potentially hacky plugins is a feature, not a bug: occasionally you have a very specific problem and some kind soul creates a solution for you, which may be functional but not the most aesthetically pleasing. That's fine. Anki is a bazaar, not a cathedral, and plugins have ratings and reviews which you can consult if necessary.

I have tried many different flashcard solutions, including hacky text-based ones, and I always return to Anki. Despite the fact that most other tools in my stack that I swear by are terminal-based.

btilly 2 days ago||
His list is a list of reasons why he was motivated to do something. It does not matter how subjective the list is, since its purpose is not to convince others. It just matters that it connects with him.

If you're potentially interested in his project, you should evaluate your interest based on how much you think like him. If his complaints aren't yours, no skin off your back. Just ignore him. If they are, read farther.

tpoacher 1 day ago||
Yes, like I said, I didn't think denigrating Anki was specifically Fernando's purpose here.

However the reason I find it off-putting is because, as someone who generally lives in the terminal, and Anki is one of the few remaining GUI apps I rely on, I actually "would" have preferred a decent terminal alternative with similar features. But introducing the alternative by saying how much Anki sucks immediately puts me off when all that criticism doesn't resonate with me.

It literally works as anti-promotion here: if Hashcards promotes itself as missing all those features of Anki which I think are great, and my time is limited, then I have much less of an incentive to invest the time to check it out. Which is ironic, because in reality it may be great (like most of his other work) and actually suit my use-case really well.

anal_reactor 2 days ago||
Using Anki every day for about half an hour (I'm a slow learner lol). Anki sucks, but it's good enough that there's no point looking for other apps.
earnesti 2 days ago|||
Sucks compared to what? I find anki super. It is amazing what other have built for me to use, for free. It is insane value.
outside1234 2 days ago|||
Anki IS amazing and DOES suck at the same time. I am very glad it exists and this is not meant as a dig at the maintainer for whom I am very grateful.

In particular, the UX is a mess. It is very hard for a beginner and frankly it feels like you are in an escape room whenever you want to do something new in terms of difficulty.

Once you are over that hump and just internalize its warts, it is AMAZING, but it IS a huge hurdle for a lot of people.

boxed 1 day ago|||
The default on iOS is pretty bad for example. Hidden hitpoints all over the card is obviously bad. And like the article states: no way to just go through all cards regardless of deck is kinda silly and annoying for no reason.
fny 2 days ago||||
I know a gazillion med students who used Anki as is to graduate. They routinely have decks with north of 10K cards.

The people who hunt for alternatives are probably procrastinating, and the people who write their own apps are definitely yak shaving.

GaggiX 2 days ago|||
Anki is amazing, "anal_reactor" I think you're wrong on this.

Also "half an hour" != "slow learner", everything depends on the quantity, the difficulty and the chosen desired retention.

yanis_t 2 days ago||
I've been working on knowledge base + spaced repetition project, and I know how convenient markdown files are.

1. You can view them anywhere (Github renders them nicely) 2. You can edit them in your favorite editor 3. Formatting doesn't decrease the readability 4. Extensible (syntax highlighting, mermaid, mathjax, etc.) 5. Cross-linking which is a core for any knowledge system is free 6. You can use Git for versioning and backup, etc, etc.

https://github.com/odosui/mt

karencarits 2 days ago|
This looks really interesting! I am studying "knowledge-heavy" subjects with lots of facts I need to learn, and have been looking for software where I can write flashcards directly within my notes, and both review them when reading my notes, and globally across notes. I like to have my notes locally, so I didnt find any good solutions. But there are some parsers for anki that can process markdown documents and extract items within them
_puk 2 days ago||
Sounds like literate programming in markdown for anki cards.
seizethecheese 2 days ago||
Curious what HN thinks about a spaced repetition social network.

You could mark items in the feed to space repeat for yourself. This would also function as a “retweet”, which would align incentives such that content that gets promoted is actually durably useful or interesting. The posts people make would repeat to themselves too, so the source content should be good.

btilly 2 days ago||
I have no idea when I'll go on a cruise next. But if I do and make friends on the cruise, I'm going to call them afterwards on a spaced repetition schedule.

I think that this should turn some of those temporary friendships into lifelong ones instead!

seizethecheese 1 day ago||
I'm not sure if you meant to reply to this comment. If you did, I'd love to know what you mean :)
btilly 1 day ago||
Fibonacci works well, and I'm sure that they'll remember me a week later.

So schedule a call for a week after the cruise. Then 2 weeks after that. Then 3 weeks after that. Then 5, 8, 13, 21, and so on.

Each call will bring back for both of us what it was like on that cruise, bring back that connection, and make both of us feel that any other call (say to meet on another cruise) would be welcome.

At least that's the theory. I won't know how well it would work until after I try it.

(My wife and I are doing something similar. Every week we pick a memory that we put into a system we have. The joint review of our memories each Sunday is a high point. So I'm sure from that, that this would bring back that sense of connection.)

skydowx 1 day ago||
Sounds fun. I would love to know more about how the system that you developed for your memories works.
dennisy 1 day ago|||
I have thought about this idea many times and think it would be amazing!

Also could think of it a little like a “Wikipedia of flashcards”.

Would you be interested in working on something like this?

DennisP 2 days ago||
I think that's a really interesting idea.
eps 2 days ago||
> Cards are content-addressed, that is, identified by the hash of their text.

Wouldn't this invalidate card's review history if I am to fix a typo in the card's text?

danielscrubs 1 day ago||
I did something similar in markdown as the author, but my solution was to generate an unique anchor with a unicode symbol after each answer.

Kind of wish I had an SSH frontend though.

Kerrick 1 day ago|||
I think that's a good thing. If you learned a false fact based on a typo, you may want to treat the true fact like a brand new fact to be learned.
victorbjorklund 1 day ago||
Whot is the capital of France? - Paris

Not sure this needs to relearned from scratch

pvdebbe 1 day ago||
Don't you just put tick "know this already" or whatever mechanism is used. It'll be asked a couple of times but it shouldn't be "relearned from scratch".
zetalyrae 1 day ago|||
Yes, and that's fine.
chotmat 2 days ago||
obviously, they and their claude didn't think about that
dnlzro 1 day ago||
Even acknowledging this flaw, there's a valid reason (simplicity) to design it this way.

"Be kind. Don't be snarky."

noahlt 2 days ago||
> The thing that makes hashcards unique: it doesn’t use a database. […] Your performance and review history is stored in an SQLite database in the same directory as the cards.

Man I was really looking forward to seeing how they stored review history in plain text.

huhtenberg 1 day ago||
The OP says that he doesn't want _cards_ be stored in opaque format, because they are valuable. The review history he doesn't care about.

But, yeah, phrasing could've been a bit more precise.

oneeyedpigeon 1 day ago||
Absolutely the same here. It seems weird to have 'no database' as the selling option for the main system, but then use SQLite for that slice of it.
gompertz 5 hours ago||
Just gave it a whirl and it works pretty good. It doesn't seem like you can force hashcards to let you re-review your deck at anytime though as its on a scheduler. (Imagine this is by design of SRS, but a bit annoying can't override with a flag).

I think uploading a textbook to NotebookLM and getting it to build out a deck for each chapter will be a great study method.

leobg 2 days ago||
For the bar exam, I used a combination of an outliner and flashcards. Back then, I was usimg a PalmPilot. The idea was:

1. Turn the subject matter into a knowledge tree. 2. If a branch has more than 5 leaves, you split it up. 3. Flashcards are generated by traversing the tree. The parent node is the question, the child nodes are the answer.

The benefit of the tree is that it forces you to think about where in your structure a given piece of new information fits.

ksynwa 1 day ago||
How did it work out? Was it helpful?
bangonkeyboard 2 days ago|||
What was the root question of law?
leobg 2 days ago||
Well. Don’t forget I wasn’t really studying “the law”, or “justice”. I was studying for the bar exam. Pretty much two separate things. :)
KingMob 1 day ago||
Sounds kind of like a mind map.
ichverstehe 2 days ago||
Allow me to plug Ankivalenz[1], my library that turns (structured) Markdown files into Anki decks, using a syntax like this:

  # Solar System
  
  ## Planets
  
  ### Color
  
  - Earth ?:: Blue
  - Mars ?:: Red
The best thing about it (for me) is that the header structure (and any parent list items) are added to the cards, e.g.:

  Path: Solar System > Planets > Color
  Front: Earth
  Back: Blue
This hierarchy makes it much easier to formulate succinct cards, in my experience.

The syntax also means that I can easily add cards from my regular Markdown notes, so regular notes and Anki cards live together.

[1] https://github.com/vangberg/ankivalenz/

alexpotato 2 days ago|
Lots of comments about using your own systems etc so I'll say two things:

1. The biggest win is just doing spaced repetition. Period

You don't even need an algorithm. You can just have options for "remind me in 1 day, 7 days, 14 days". This is how people did with physical cards: they just put the card at the back of the deck, the middle or the front.

2. LLMs now make it trivial to just say "make me an Anki clone in python with these features" and it will come up with something pretty decent.

In closing, learning the things that LLMs can't do quickly and efficiently is basically what we should all be doing.

theshrike79 20 hours ago|
#2 is what I did.

In addition to "make me a prompt to go with photos of the school book word list that will output <specific JSON> I can import to my tool"

Works pretty well and a lot faster than typing it all in by hand.

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