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
michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

Tweets

michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

Tweets

  • © 2019 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. michael_nielsen‏ @michael_nielsen Sep 24
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      "A proof that the Navier-Stokes equations are computationally universal" (I believe Terry Tao has a proof for a stripped down version)

      1 reply 0 retweets 13 likes
    2. michael_nielsen‏ @michael_nielsen Sep 24
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      "An Alcubierre-like solution to the field equations of general relativity, with realistic stress-energy tensor" (cf https://arxiv.org/abs/gr-qc/0009013 … )

      1 reply 0 retweets 10 likes
    3. michael_nielsen‏ @michael_nielsen Sep 24
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      "An approximate self-replicating system with fewer than 100 atoms"

      1 reply 1 retweet 26 likes
    4. michael_nielsen‏ @michael_nielsen Sep 24
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      "Why we sleep" (a correct answer would be wonderful...)

      5 replies 3 retweets 15 likes
    5. José Luis Ricón (Artir)‏ @ArtirKel Sep 24
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      I mean, there is a book with that same title, than answers that q!

      1 reply 0 retweets 2 likes
    6. michael_nielsen‏ @michael_nielsen Sep 25
      • Report Tweet
      Replying to @ArtirKel @danielgross

      No, it doesn't.

      1 reply 0 retweets 5 likes
    7. José Luis Ricón (Artir)‏ @ArtirKel Sep 25
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      Oh what's missing?

      1 reply 0 retweets 0 likes
    8. michael_nielsen‏ @michael_nielsen Sep 25
      • Report Tweet
      Replying to @ArtirKel @danielgross

      I haven't read the book. But the reviews and synopses suggest the book barely touches the question, except in a superficial way. (I considered reading it, but decided against when I realized it's not really about the question of the title.)

      2 replies 1 retweet 5 likes
    9. José Luis Ricón (Artir)‏ @ArtirKel Sep 25
      • Report Tweet
      Replying to @michael_nielsen @danielgross

      Hm, I can excerpt the bits you may want when I get back home, or you can libgen it and have a look

      1 reply 0 retweets 0 likes
    10. José Luis Ricón (Artir)‏ @ArtirKel Sep 25
      • Report Tweet
      Replying to @ArtirKel @michael_nielsen @danielgross

      Or, what kind of explanation are you looking for? The book talks about the evolution of sleep, and it's functional role, what else is missing?

      1 reply 0 retweets 0 likes
      michael_nielsen‏ @michael_nielsen Sep 25
      • Report Tweet
      Replying to @ArtirKel @danielgross

      One that's convincing. Unlike the half dozen or more I've previously read about the evolution of sleep and its functional role.

      7:57 AM - 25 Sep 2019
      • 1 Retweet
      • 2 Likes
      • WonkaWasInnocent Leon T
      1 reply 1 retweet 2 likes
        1. New conversation
        2. José Luis Ricón (Artir)‏ @ArtirKel Sep 25
          • Report Tweet
          Replying to @michael_nielsen @danielgross

          Can you link me to the previous ones and why they are not convincing?

          1 reply 0 retweets 1 like
        3. michael_nielsen‏ @michael_nielsen Sep 25
          • Report Tweet
          Replying to @ArtirKel @danielgross

          I'm in a slightly odd spot here. I feel a little as though I've commented that astrology isn't all that convincing, and someone now wants a list of what I've read about astrology (a fair number of tidbits, over my life, but it was all bad, so I don't remember any titles);

          2 replies 0 retweets 1 like
        4. 14 more replies

      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

        • © 2019 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info