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www.wired.com/...ff_wozniak - Cached - Annotated View

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joel
Joel bookmarked on 2008-08-07 memory psychology algorithm
  • Piotr Wozniak's quest for anonymity has been successful. Nobody along this string of little beach resorts recognizes him as the inventor of a technique to turn people into geniuses. A portion of this technique, embodied in a software program called SuperMemo, has enthusiastic users around the world. They apply it mainly to learning languages, and it's popular among people for whom fluency is a necessity — students from Poland or other poor countries aiming to score well enough on English-language exams to study abroad. A substantial number of them do not pay for it, and pirated copies are ubiquitous on software bulletin boards in China, where it competes with knockoffs like SugarMemo.
  • SuperMemo is based on the insight that there is an ideal moment to practice what you've learned. Practice too soon and you waste your time. Practice too late and you've forgotten the material and have to relearn it. The right time to practice is just at the moment you're about to forget. Unfortunately, this moment is different for every person and each bit of information. Imagine a pile of thousands of flash cards. Somewhere in this pile are the ones you should be practicing right now. Which are they?
  • It predicts the future state of a person's memory and schedules information reviews at the optimal time. The effect is striking. Users can seal huge quantities of vocabulary into their brains. But for Wozniak, 46, helping people learn a foreign language fast is just the tiniest part of his goal. As we plan the days, weeks, even years of our lives, he would have us rely not merely on our traditional sources of self-knowledge — introspection, intuition, and conscious thought — but also on something new: predictions about ourselves encoded in machines.
  • In the late 1800s, a German scientist named Hermann Ebbinghaus made up lists of nonsense syllables and measured how long it took to forget and then relearn them. (Here is an example of the type of list he used: bes dek fel gup huf jeik mek meun pon daus dor gim ke4k be4p bCn hes.) In experiments of breathtaking rigor and tedium, Ebbinghaus practiced and recited from memory 2.5 nonsense syllables a second, then rested for a bit and started again. Maintaining a pace of rote mental athleticism that all students of foreign verb conjugation will regard with awe, Ebbinghaus trained this way for more than a year. Then, to show that the results he was getting weren't an accident, he repeated the entire set of experiments three years later. Finally, in 1885, he published a monograph called Memory: A Contribution to Experimental Psychology. The book became the founding classic of a new discipline.
  • As a student at the Poznan University of Technology in western Poland in the 1980s, Wozniak was overwhelmed by the sheer number of things he was expected to learn. But that wasn't his most troubling problem. He wasn't just trying to pass his exams; he was trying to learn. He couldn't help noticing that within a few months of completing a class, only a fraction of the knowledge he had so painfully acquired remained in his mind. Wozniak knew nothing of the spacing effect, but he knew that the methods at hand didn't work.
  • If students nonetheless manage to become expert in a few of the things they study,




    it's not because they retain the material from their lessons but because they specialize in a relatively narrow subfield where intense practice keeps their memory fresh.
  • The disadvantage of this comforting notion is that it's false. "The people who criticize memorization — how happy would they be to spell out every letter of every word they read?" asks Robert Bjork, chair of UCLA's psychology department and one of the most eminent memory researchers. After all, Bjork notes, children learn to read whole words through intense practice, and every time we enter a new field we become children again. "You can't escape memorization," he says. "There is an initial process of learning the names of things. That's a stage we all go through. It's all the more important to go through it rapidly." The human brain is a marvel of associative processing, but in order to make associations, data must be loaded into memory.
  • Their results were impressive: The best time to study something is at the moment you are about to forget it. And yet — as Neisser might have predicted — that insight was useless in the real world. Determining the precise moment of forgetting is essentially impossible in day-to-day life.
  • Instead, Wozniak has ridden SuperMemo into uncharted regions of self-experimentation. In 1999, he started making a detailed record of his hours of sleep, and now he's working to correlate that data with his daily performance on study repetitions. Psychologists have long believed there's a correlation between sleep and memory, but no mathematical law has been discovered. Wozniak has also invented a way to apply his learning system to his intake of unstructured information from books and articles, winnowing written material down to the type of discrete chunks that can be memorized, and then scheduling them for efficient learning. He selects a short section of what he's reading and copies it into the SuperMemo application, which predicts when he'll want to read it again so it sticks in his mind. He cuts and pastes completely unread material into the system, assigning it a priority. SuperMemo shuffles all his potential knowledge into a queue and presents it to him on a study screen when the time is right. Wozniak can look at a graph of what he's got lined up to learn and adjust the priority rankings if his goals change.
  • For Wozniak, these misfires were less a product of scrambling than of an inevitable clash of goals. A person who understands the exact relationship between learning and time is forced to measure out his hours with a certain care. SuperMemo was like a genie that granted Wozniak a wish: unprecedented power to remember. But the value of what he remembered depended crucially on what he studied, and what he studied depended on his goals, and the selection of his goals rested upon the efficient acquisition of knowledge, in a regressive function that propelled him relentlessly along the path he had chosen. The guarantee that he would not forget what he learned was both a gift and a demand, requiring him to sacrifice every extraneous thing.
  • The failure of SuperMemo to transform learning uncannily repeats the earlier failures of cognitive psychology to influence teachers and students. Our capacity to learn is amazingly large. But optimal learning demands a kind of rational control over ourselves that does not come easily. Even the basic demand for regularity can be daunting. If you skip a few days, the spacing effect, with its steady march of sealing knowledge in memory, begins to lose its force. Progress limps. When it comes to increasing intelligence, our brain is up to the task and our technology is up to the task. The problem lies in our temperament.
  • As a science fiction fan, I had always assumed that when computers supplemented our intelligence, it would be because we outsourced some of our memory to them. We would ask questions, and our machines would give oracular — or supremely practical — replies. Wozniak has discovered a different route. When he entrusts his mental life to a machine, it is not to throw off the burden of thought but to make his mind more swift. Extreme knowledge is not something for which he programs a computer but for which his computer is programming him.

This link has been bookmarked by 143 people . It was first bookmarked on 22 Apr 2008, by nate stearns.

  • 22 Nov 09
    alexko
    Alex Ko

    Your chance of recalling a given word when you need it declines over time according to a predictable pattern. SuperMemo tracks this so-called forgetting curve and reminds you to rehearse your knowledge when your chance of recalling it has dropped to, say, 90 percent.

    psychology learning

    • Fortunately, human forgetting follows a pattern. We forget exponentially. A graph of our likelihood of getting the correct answer on a quiz sweeps quickly downward over time and then levels off. This pattern has long been known to cognitive psychology, but it has been difficult to put to practical use. It's too complex for us to employ with our naked brains.
    • they will cue us to remember what we've read, help us track whom we've met, and remind us of our goals
    • 16 more annotations...
  • 13 Nov 09
  • 28 Oct 09
    bargo_d
    Bhargav Dronamraju

    Piotr Wozniak has a technique to turn people into geniuses, and a portion of the technique is in a software program called SuperMemo. Users around the world apply it to learning languages and gaining language fluency. SuperMemo is based on the insight that there is an ideal moment to practice what you've learned.

    diigo

  • 29 Sep 09
    • The people who criticize memorization — how happy would they be to spell out every letter of every word they read?"
    • The memory appears to be gone because you can't recall it, but we can prove that it's still there. For instance, you can still recognize a 'forgotten' item in a group. Yes, without continued use, things become inaccessible. But they are not gone."
    • 1 more annotations...
  • 14 Sep 09
  • 13 Sep 09
  • 12 Sep 09
  • rockiger
    Marco Laspe

    Hilft dir vielleicht bei der Knzeption.

    learning

  • 09 Sep 09
    helpsystems
    The Webmaster

    Piotr Wozniak has a technique to turn people into geniuses, and a portion of the technique is in a software program called SuperMemo. Users around the world apply it to learning languages and gaining language fluency. SuperMemo is based on the insight that there is an ideal moment to practice what you've learned.

  • 04 Aug 09
  • 25 Jul 09
  • 23 Jul 09
    • The man gives a polite but vague answer, then turns and dives into the waves. After swimming back and forth in the 40-degree water for a few minutes, he emerges from the surf and jogs briefly along the shore.



    • "Kalt? Kalt?" one of them calls out. The man gives a polite but vague answer, then turns and dives into the waves. After swimming back and forth in the 40-degree water for a few minutes, he emerges from the surf and jogs briefly along the shore.

    • 3 more annotations...
  • 22 Jul 09
  • 22 Jun 09
    esploristo
    David Bisset

    A system with a polish twist!

    memory psychology learning memorization

  • 14 Jun 09
  • 29 Apr 09
  • 15 Apr 09
  • 11 Apr 09
    • Remember Everything You'll Ever Learn?
  • 06 Mar 09
  • 18 Feb 09
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  • 29 Jan 09
  • 28 Jan 09
    • When it comes to language, the received wisdom is that immersion — usually amounting to actual immigration — is necessary to achieve fluency. On one hand, this is helpful advice. On the other hand, it's an awful commentary on the value of countless classroom hours. Learning things is easy. But remembering them — this is where a certain hopelessness sets in.
    • The problem of forgetting might not torment us so much if we could only convince ourselves that remembering isn't important. Perhaps the things we learn — words, dates, formulas, historical and biographical details — don't really matter. Facts can be looked up. That's what the Internet is for. When it comes to learning, what really matters is how things fit together. We master the stories, the schemas, the frameworks, the paradigms; we rehearse the lingo; we swim in the episteme.
    • 6 more annotations...
  • 26 Jan 09
  • 22 Jan 09
  • 24 Dec 08
    furlmanus
    furlmanus

    about Polish SuperMemo Man

  • 20 Dec 08
  • 28 Oct 08
  • 13 Oct 08
    • SuperMemo is based on the insight that there is an ideal moment to practice what you've learned. Practice too soon and you waste your time. Practice too late and you've forgotten the material and have to relearn it. The right time to practice is just at the moment you're about to forget. Unfortunately, this moment is different for every person and each bit of information. Imagine a pile of thousands of flash cards. Somewhere in this pile are the ones you should be practicing right now. Which are they?
    • After all, there is a tremendous amount of material we might want to know. Time is short.
  • 29 Aug 08
  • 07 Aug 08
    • Piotr Wozniak's quest for anonymity has been successful. Nobody along this string of little beach resorts recognizes him as the inventor of a technique to turn people into geniuses. A portion of this technique, embodied in a software program called SuperMemo, has enthusiastic users around the world. They apply it mainly to learning languages, and it's popular among people for whom fluency is a necessity — students from Poland or other poor countries aiming to score well enough on English-language exams to study abroad. A substantial number of them do not pay for it, and pirated copies are ubiquitous on software bulletin boards in China, where it competes with knockoffs like SugarMemo.
    • SuperMemo is based on the insight that there is an ideal moment to practice what you've learned. Practice too soon and you waste your time. Practice too late and you've forgotten the material and have to relearn it. The right time to practice is just at the moment you're about to forget. Unfortunately, this moment is different for every person and each bit of information. Imagine a pile of thousands of flash cards. Somewhere in this pile are the ones you should be practicing right now. Which are they?
    • 10 more annotations...
  • 03 Aug 08
  • 02 Aug 08
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  • 15 Jun 08
    alvarezval
    Jesus Alvarez

    tengo que investigar sobre este tema

    grestión conocimiento

  • 08 Jun 08
    novica
    Novica Nakov

    Интересна работа. Ќе се обидам да ја прочитам пак, за да видам колку сум запамтил. ;-)

    science memory education

  • 06 Jun 08
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  • 13 May 08
  • weidmax
    weidmax

    Wired Magazine

  • 11 May 08
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  • 05 May 08
    mileskelly
    Miles Kelly

    Wired Magazine 16.05 21/04/08 Super Memo

    Science Training

  • kemlonova
    Miles Kelly

    Wired Magazine 16.05 21/04/08 Super Memo

    Science Training

  • 04 May 08
    • A portion of this technique, embodied in a software program called SuperMemo, has enthusiastic users around the world.
    • apply it mainly to learning languages, and it's popular among people for whom fluency is a necessity
    • 14 more annotations...
  • 03 May 08
  • 02 May 08
  • 01 May 08
  • 30 Apr 08
    • Ebbinghaus showed that it's possible to dramatically improve learning by correctly spacing practice sessions
  • 28 Apr 08
  • 27 Apr 08
    • One of the problems is that the amount of storage strength you gain from practice is inversely correlated with the current retrieval strength. In other words, the harder you have to work to get the right answer, the more the answer is sealed in memory. Precisely those things that seem to signal we're learning well — easy performance on drills, fluency during a lesson, even the subjective feeling that we know something — are misleading when it comes to predicting whether we will remember it in the future.
  • 26 Apr 08
  • 25 Apr 08
  • kabell
    Jeppe Kabell

    Fascinerende artikel om en gut, der har overgivet sig selv 100% til en computerstyret algoritme, der styrer alle hans handlinger i hans liv + om et program, SuperMemo, der er perfekt til indlæring/repitition.

    memory learning psychology education supermemo productivity thinking time mind habits cognition

  • rrrchk
    rchk !

    Want to Remember Everything You'll Ever Learn? Surrender to This Algorithm

    wired article memory psychology import-1

  • 24 Apr 08
  • 23 Apr 08
  • anonymous

    SuperMemo; learning software that reminds and tests you at intervals so that you understand what you are forgetting, and can remind or relearn at the correct time to retain it.

    article articles awesome blog brain business computing cool download downloads essay fun geek hack health howto intelligence knowledge language languages learning life lifehacker lifehacks memory people philosophy reading review social spanish study

  • frufrufour1
    FruFru FourOne

    SuperMemo; learning software that reminds and tests you at intervals so that you understand what you are forgetting, and can remind or relearn at the correct time to retain it.

    article articles awesome blog brain business computing cool download downloads essay fun geek hack health howto intelligence knowledge language languages learning life lifehacker lifehacks memory people philosophy reading review social spanish study

    • Precisely those things that seem to signal we're learning well — easy performance on drills, fluency during a lesson, even the subjective feeling that we know something — are misleading when it comes to predicting whether we will remember it in the future.
    • Wozniak has also invented a way to apply his learning system to his intake of unstructured information from books and articles, winnowing written material down to the type of discrete chunks that can be memorized, and then scheduling them for efficient learning. He selects a short section of what he's reading and copies it into the SuperMemo application, which predicts when he'll want to read it again so it sticks in his mind. He cuts and pastes completely unread material into the system, assigning it a priority. SuperMemo shuffles all his potential knowledge into a queue and presents it to him on a study screen when the time is right. Wozniak can look at a graph of what he's got lined up to learn and adjust the priority rankings if his goals change.
    • 3 more annotations...
  • vuduchick
    Monica Francisco DeKam

    Pretty awesome article....must read! :D

    Memory Brain Learning Memor

    • Twenty years ago, Wozniak realized that computers could easily calculate the moment of forgetting if he could discover the right algorithm. SuperMemo is the result of his research. It predicts the future state of a person's memory and schedules information reviews at the optimal time
  • cbrannon
    Chad Brannon

    How Supermemo Works
    SuperMemo is a program that keeps
    track of discrete bits of information you've learned and want to retain. For
    example, say you're studying Spanish. Your chance of recalling a given word when
    you need it declines over time accor

    brain nervous system

    • Want to Remember Everything You'll Ever Learn? Surrender to This Algorithm
  • austintung
    Austin T

    SuperMemo is based on the insight that there is an ideal moment to practice what you've learned. Practice too soon and you waste your time. Practice too late and you've forgotten the material and have to relearn it. The right time to practice is just at the moment you're about to forget.

    memory psychology learning

  • 22 Apr 08
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