Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
andy_matuschak's profile
Andy Matuschak
Andy Matuschak
Andy Matuschak
Verified account
@andy_matuschak

Tweets

Andy MatuschakVerified account

@andy_matuschak

Wonder, blunder, salve, solve! Working on tools that expand what people can think and do. Past: led R&D @KhanAcademy; helped build iOS @Apple.

San Francisco, CA
andymatuschak.org
Joined November 2007

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
    • Report Tweet
    • Report NetzDG Violation

    In September we added a "retry" step to Quantum Country. If you forget something, you'll review it again later that session. Other systems do something like this, and interviews suggested that readers needed to feel seen+supported when forgetting. Does it help accuracy? (con't)pic.twitter.com/ChpK5YdLmK

    10:19 AM - 10 Dec 2019
    • 43 Likes
    • Everard Vanderplast Pawan Sasanka Ammanamanchi czub / ズー Robin Taylor AlasdairTweets 🌐 briantobal Davis Brown michael_nielsen Carlos E. Barboza
    4 replies 0 retweets 43 likes
      1. New conversation
      2. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation

        It seems to helps a little… but not as much as I expected! Considering questions forgotten after a 2 week break, how likely were those q's to be forgotten next time (a few days later)? With retry: 79 ±4.1% (N=375) Without retry: 74 ±1.8% (N=2347) (95% ci's assume binomial iid)

        1 reply 0 retweets 5 likes
        Show this thread
      3. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation

        OK, a few pp, but those intervals overlap. And actually, the confidence is likely a bit overstated, since there'll be within-user correlations of samples. I'd guess it'll resolve to 2-3pp. It'd be nice to have >80% accuracies for lapsed q's. We'll need stronger interventions!

        1 reply 0 retweets 3 likes
        Show this thread
      4. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation

        Instinctively, I suspect the retry behavior is likely worth keeping around as an emotionally important element. More interviews will help us understand that. But there's a time cost to retrying, so we'll want to replace/augment it with something better if we can!

        1 reply 0 retweets 4 likes
        Show this thread
      5. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation

        Andy Matuschak Retweeted Andy Matuschak

        I was quite unclear! The numbers in this tweet are *accuracies* (not rates of forgetting).https://twitter.com/andy_matuschak/status/1204465773642579968 …

        Andy Matuschak added,

        Andy MatuschakVerified account @andy_matuschak
        It seems to helps a little… but not as much as I expected! Considering questions forgotten after a 2 week break, how likely were those q's to be forgotten next time (a few days later)? With retry: 79 ±4.1% (N=375) Without retry: 74 ±1.8% (N=2347) (95% ci's assume binomial iid)
        Show this thread
        1 reply 0 retweets 3 likes
        Show this thread
      6. Andy Matuschak‏Verified account @andy_matuschak Mar 7
        • Report Tweet
        • Report NetzDG Violation

        Update with a few more months of data: experimental interval tightened up; the result holds. Lapsed-question accuracies: With retry: 78±2.1% (N=1553) Without retry: 74±1.8% (N=2373) Continues to surprise me that retry doesn't help much!

        1 reply 0 retweets 5 likes
        Show this thread
      7. End of conversation
      1. New conversation
      2. Alex Dautel‏ @howtodowtle 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @andy_matuschak

        What kind of annoyed me and kept me from going back is that I have to review the easy questions as often as the hard ones (i.e. no easy modifier like in Anki). When I have to answer 20 basic questions I never got wrong to also review 10 hard ones it feels like a waste of time.

        1 reply 0 retweets 1 like
      3. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @howtodowtle

        That’s helpful feedback, thank you. We recently made the schedule much more aggressive in part to help with this. Do you recall when you tried it? I would be curious if it still felt annoying with the new schedule.

        1 reply 0 retweets 2 likes
      4. 1 more reply
      1. New conversation
      2. Damu‏ @outlieranalysis 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @andy_matuschak

        I am sorry if it is already available but is there a way i can go through the questions again as part of the text itself? When i re-read, i do not see the questions.

        1 reply 0 retweets 0 likes
      3. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @outlieranalysis

        I'm afraid there isn't such an option at the moment. Could you say more about why it feels like that might be helpful to you?

        1 reply 0 retweets 0 likes
      4. 1 more reply
      1. New conversation
      2. Tmo‏ @_ThomasT 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @andy_matuschak

        I’m going through it now but I’m taking a couple days to finish it. Does it save my progress?

        1 reply 0 retweets 0 likes
      3. Andy Matuschak‏Verified account @andy_matuschak 10 Dec 2019
        • Report Tweet
        • Report NetzDG Violation
        Replying to @_ThomasT

        Yes, if you register.

        1 reply 0 retweets 0 likes
      4. 1 more reply

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2020 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Imprint
      • Cookies
      • Ads info