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
TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

Tweets

Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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.

    1. Tim Sweeney‏ @TimSweeneyEpic 23 Oct 2018
      • Report Tweet
      • Report NetzDG Violation

      This gets to the heart of the problem for all type systems supporting deduction. Haskell is slightly better, but at a certain level of abstraction a function type can’t be separated from its implementation. https://brevzin.github.io/c++/2018/10/20/concepts-declarations/ …

      2 replies 6 retweets 24 likes
      Show this thread
    2. Tim Sweeney‏ @TimSweeneyEpic 23 Oct 2018
      • Report Tweet
      • Report NetzDG Violation

      C++ makes you express validity constraints with SFINAE, then write the same expression in the implementation. Haskell has Wadler’s Theorems for Free mechanism. Only functional logic languages really address unification, failure and backtracking rigorously.

      2 replies 0 retweets 11 likes
      Show this thread
      Tim Sweeney‏ @TimSweeneyEpic 23 Oct 2018
      • Report Tweet
      • Report NetzDG Violation

      My view after 20 years of floundering on type systems is that type deduction is as hopelessly unscalable as automated theorem proving, and that a language should expose functional logic constructs so programmers can write constraints naturally.

      11:59 AM - 23 Oct 2018
      • 5 Retweets
      • 38 Likes
      • λndres Mariscal Rogério Souza nope razh Ben Schulz Andrew Haining ☭☸️☮️ TheBaggers Matt Waddilove Sebastian
      10 replies 5 retweets 38 likes
        1. SuitingRex‏ @SuitingRex 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          I have no idea what this means but no one was commenting so i did not want you to feel lonely👍

          0 replies 0 retweets 3 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. Mathew Tomberlin‏ @MathewTomberlin 24 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          I often read @TimSweeneyEpic’s tweets thinking: “I’m a C++ programmer now. Surely if I read enough of these, they’ll start to make sense!” They never do.

          0 replies 0 retweets 1 like
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. Conor Stokes, the man from online‏ @xDirtyPunkx 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          Tony Hoare: hate to be an I told you so.

          1 reply 0 retweets 0 likes
        3. Won Chun‏ @won3d 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @xDirtyPunkx @TimSweeneyEpic

          Thoughts on OCaml?

          1 reply 0 retweets 0 likes
        4. 3 more replies
        1. Michael Hale‏ @wakebrdkid 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          I definitely agree with the first part, although I doubt anyone would say you've floundered much overall. I've been using Typescript some in a project the past month. It has a pragmatic-for-web-dev feel of letting you sprinkle in some advanced type features as desired.

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. 󠃲‏ @nuopnu 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          󠃲 Retweeted 󠃲

          https://twitter.com/nuopnu/status/929421223163056129 … It's going overboard that's unscalable in the first place. The complexity, or seemingly inexpressible implementations might be redundant. While you were fighting the compiler for the whole day, you could've written an imperative checker within an hour.

          󠃲 added,

          󠃲 @nuopnu
          The language plays with our tendencies to dive into a problem and to not to get out of it untill it's solved. Or a toy you are playing with and won't give up until you are bored, or run out of fantasies. Better forward this to actual problem solving of actual problems.
          Show this thread
          1 reply 0 retweets 0 likes
        3. 󠃲‏ @nuopnu 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @nuopnu @TimSweeneyEpic

          Hooking up that checker(s) to some another meta-consistency checker also isn't a rocket science. Decouple it and build horizontal (not vertical) layers, instead of mixing it all up in a one single bowl of soup.

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. New conversation
        2. Bob Burrough‏Verified account @bob_burrough 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          Millimeters times millimeters results in millimeters squared, validated at compile time.pic.twitter.com/5bKbAvUqiH

          1 reply 0 retweets 0 likes
        3. Bob Burrough‏Verified account @bob_burrough 23 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @bob_burrough @TimSweeneyEpic

          If you write a lengthy arithmetic function and use the wrong type somewhere along the way, the compiler will whack you.

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. New conversation
        2. Mike Sperber‏ @sperbsen 24 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @TimSweeneyEpic

          “Functional Logic Overloading” http://deinprogramm.de/sperber/papers/functional-logic-overloading.pdf …

          1 reply 0 retweets 0 likes
        3. Laurent Giroud‏ @laurentgiroud 24 Oct 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @sperbsen

          Note that the link which points to how the Success kind Singleton is defined is now invalid. This is a shame since the typeclass example is IMO (as an Haskell neophyte) the most illustrative of @TimSweeneyEpic ‘s concern. How the link with == is done is IMO the core of the issue.

          0 replies 0 retweets 0 likes
        4. 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

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