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.
  • 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
cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

Tweets

Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

Tweets

  • © 2021 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. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      So sure - context free geometry replacement grammars can be used to compress all sorts of natural phenomenon into some simple rules so long as you accept a number of constraints, but they don't really add any insight to what we already know.

      2 replies 0 retweets 7 likes
    2. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      They're a compression format for rules, might be another way to say it, and they're also probably lossy. Since context-free grammars _also_ have all sorts of limitations, it also seems likely that they cannot explain the universe properly, otherwise they would work better :)

      2 replies 0 retweets 5 likes
    3. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      Anyway, Twitter is not great at explaining this, but hopefully that is the basic gist. So this just seems like another case of Wolfram "rediscovering" something we've known for like 60 years and thinking he made a breakthrough.

      3 replies 0 retweets 8 likes
    4. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      In this case, it's the work of Aristid Lindenmayer and descendants - which he notably fails to mention in the entire post. Which is another really big clue to me that this is not something new, because if they were diligently researching this, they would mention the prior work!

      1 reply 0 retweets 6 likes
    5. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      Like half the things he said in the blog post are already _in_ Lindenmayer's stuff or his work with Prusinkiewicz, etc. And that's not even counting the new stuff that is actually more advanced than CFGs done by people in the past decade (for things like city generation).

      2 replies 0 retweets 3 likes
    6. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      Like typically if you work on these for a living you are done with CFGs pretty early on because they just aren't very good. You need constraint grammars or other kinds of contextual grammars to actually do anything useful.

      0 replies 0 retweets 2 likes
    7. This Tweet is unavailable.
    8. This Tweet is unavailable.
    9. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @Jonathan_Blow

      Well, it _seems_ like it is the same to me. I only downloaded the first paper (on curvature). It reads exactly like what I would expect - "if we pretend that these features of the graph are X, then we can successfully get equation Y".

      1 reply 0 retweets 0 likes
    10. Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      Some of these, I don't even quite understand why they are even statements. They are like "if we take a graph that can only be represented in 3D without crossings, then it has 3D properties" - but obviously that is true?

      1 reply 0 retweets 0 likes
      Casey Muratori‏ @cmuratori 14 Apr 2020
      Replying to @cmuratori @Jonathan_Blow

      Like, obviously I can't say for sure because there's a big information dump here, and they are not particularly good at explaining themselves (as mathematicians often are). So, to be continued, certainly.

      11:48 AM - 14 Apr 2020
      0 replies 0 retweets 0 likes

      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

        • © 2021 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info