Skip to content
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

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
RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

Tweets

Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • 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.

    1. Matthew Green‏ @matthew_d_green 26 Dec 2017

      In defense of cryptocurrencies, I’d like to push back against the “Visa is so awesome” meme that’s afflicted Twitter this past week. This is a terrible take. 1/n

      28 replies 511 retweets 994 likes
      Show this thread
    2. Matthew Green‏ @matthew_d_green 26 Dec 2017

      Visa is the absolute worst. They’re terrible. Let me put it another way: Visa is so awful *and hard to dislodge* that people developed Bitcoin in an effort to get rid of them. 2/n

      14 replies 89 retweets 363 likes
      Show this thread
    3. Matthew Green‏ @matthew_d_green 26 Dec 2017

      That’s right. One of the most important functions of society has been poorly implemented that people *had to effectively re-invent cash* in an effort to replace them. 3/n

      7 replies 35 retweets 197 likes
      Show this thread
    4. Matthew Green‏ @matthew_d_green 26 Dec 2017

      If you like numbers, there are better ones than transaction throughout. Take profit margin. This company, which does nothing interesting, routinely brings in 45-55% profit margins. That’s highway robbery. 4/n

      19 replies 56 retweets 331 likes
      Show this thread
    5. Matthew Green‏ @matthew_d_green 26 Dec 2017

      For this service, which is trivial to provide, the card industry charges both customers and merchants enormous fees. That 3% fee infests everything we do. 5/n

      24 replies 39 retweets 232 likes
      Show this thread
      Rich Felker‏ @RichFelker 26 Dec 2017
      Replying to @matthew_d_green

      This is largely uninteresting because it's a lot cheaper than (insurance, armored cars, etc.) handling cash.

      7:14 PM - 26 Dec 2017
      • 1 Like
      • Merry Kralizec
      1 reply 0 retweets 1 like
        1. New conversation
        2. Matthew Green‏ @matthew_d_green 27 Dec 2017
          Replying to @RichFelker

          Put this a different way. Has Visa’s share of the transaction fee gone down in proportion to any other high-availability communications service over the past two decades?

          2 replies 1 retweet 1 like
        3. Matthew Green‏ @matthew_d_green 27 Dec 2017
          Replying to @matthew_d_green @RichFelker

          Long distance calls have gone from 25 cents per minute to “who the hell can afford to meter long distance calls”. High-availability SLA servers have gone down in price by many orders of magnitude.

          2 replies 1 retweet 1 like
        4. Matthew Green‏ @matthew_d_green 27 Dec 2017
          Replying to @matthew_d_green @RichFelker

          I’m struggling to think of any fundamentally *digital* service that has held its price the way Visa share of the transaction fee has. Can you? Don’t point to cash, because that’s the wrong comparison.

          1 reply 1 retweet 1 like
        5. Matthew Green‏ @matthew_d_green 27 Dec 2017
          Replying to @matthew_d_green @RichFelker

          And if your answer is “that fee pays for fraud” then you’ll have to explain how the card industry deliberately held onto ridiculously insecure magstripe cards in the US until essentially forced to add chip cards, which massively decrease fraud costs.

          1 reply 1 retweet 3 likes
        6. Matthew Green‏ @matthew_d_green 27 Dec 2017
          Replying to @matthew_d_green @RichFelker

          And we still don’t have chip and PIN, we have “chip and signature” because managing bails of paper with scribbles nobody ever looks at is absolutely a useful solution an efficient industry would adopt.

          1 reply 2 retweets 1 like
        7. Paul Wouters  ☕️‏ @letoams 27 Dec 2017
          Replying to @matthew_d_green @RichFelker

          don’t blame signature (or paper checks) on Visa/MasterCard. They don’t do those in civilized (non-NA) countries 😜

          1 reply 0 retweets 1 like
        8. Chester Wisniewski‏Verified account @chetwisniewski 27 Dec 2017
          Replying to @letoams @matthew_d_green @RichFelker

          Don't lump Canada in with your mess. We use Chip and PIN

          1 reply 0 retweets 0 likes
        9. Paul Wouters  ☕️‏ @letoams 28 Dec 2017
          Replying to @chetwisniewski @matthew_d_green @RichFelker

          I have to take photos of checks to deposit and attend a bank physically to send a wire. It has PIN but will fall back to signature-without-pin after 3 pin failures. Canada is stone age banking too 😜

          0 replies 0 retweets 0 likes
        10. End of conversation

      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

        • © 2018 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info