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
zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
Verified account
@zeynep

Tweets

zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

Tweets

  • © 2022 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. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      What's true is that in a "well-mixed" room (VERY IMPORTANT ASSUMPTION IN THE MODEL IN THAT PAPER BEING REPORTED ON), if you spend long enough time, distance isn't *completely* protective which IS NOT AT ALL THE same as "distance doesn't matter" or that 6 and 60 feet are the same.

      11 replies 184 retweets 1,003 likes
      Show this thread
    2. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      zeynep tufekci Retweeted Prof. Jose-Luis Jimenez

      Perhaps the most important misunderstanding has been assuming aerosols=long distance only. No, they do not teleport from a person to over two feet away a la "beam it over there, Scotty." Aerosols ALSO concentrate around the person and dilute with distance.https://twitter.com/jljcolorado/status/1385708443537866758 …

      zeynep tufekci added,

      Prof. Jose-Luis JimenezVerified account @jljcolorado
      Agree with @zeynep. Distance is about the most importance measure for an airborne pathogen (see diagram below from @linseymarr). The authors say it is less so with masks. But masks in the real world are mixed quality and poor fit, so air goes everywhere. Best to keep distance https://twitter.com/zeynep/status/1385707216280375298 … pic.twitter.com/M2RkWPuO4a
      11 replies 155 retweets 645 likes
      Show this thread
    3. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      I'd suggest that it doesn't help to jump from "distance isn't fully protective especially if you sit long enough in an enclosed space where the air keeps mixing" to headlines like "6 feet and 60 feet are the same!". Again @linseymarr and others have great work on this.

      9 replies 55 retweets 496 likes
      Show this thread
    4. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      zeynep tufekci Retweeted Kimberly Prather, Ph.D.

      Another from an expert.Of course aerosol concentration dilutes with distance (and very quickly outdoors for obvious reasons!) but if the space is enclosed, they can keep accumulating, and "6 feet" isn't some magic bubble—especially if you stay long enough.https://twitter.com/kprather88/status/1384162849354776579 …

      zeynep tufekci added,

      Kimberly Prather, Ph.D.Verified account @kprather88
      Replying to @tdonaghey @WHO @CDCgov
      In general, the concentration falls off as a function of distance. However, this can get complicated by the fact that aerosols don't fall to the ground but instead can build up over time in poorly ventilated indoor spaces.
      6 replies 83 retweets 421 likes
      Show this thread
    5. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      zeynep tufekci Retweeted Dr. Alex Huffman (he/him)

      Adding. It goes without saying that I'm just a vehicle here, reflecting years of research on this topic by many scientists. I'd like that headline corrected, at a minimum, though, @RichMendezCNBC. Telling people distance doesn't matter at all isn't okay.https://twitter.com/HuffmanLabDU/status/1385722709271711745 …

      zeynep tufekci added,

      Dr. Alex Huffman (he/him) @HuffmanLabDU
      Replying to @BedrockConcept @macroliter @Stanford
      The point is that the authors numerically modeled the physical process of aerosol spread & they applied the assumption that air in a room is well-mixed. So the headline the editors picked really plays on their base assumption more than the actual results. https://twitter.com/zeynep/status/1385707216280375298 …
      9 replies 36 retweets 336 likes
      Show this thread
    6. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      zeynep tufekci Retweeted Linsey Marr

      And here’s another leading scientist on airborne transmission.https://twitter.com/linseymarr/status/1385751394595090436 …

      zeynep tufekci added,

      Linsey MarrVerified account @linseymarr
      Replying to @zeynep @jljcolorado
      This is a silly headline, as the model ASSUMES instantaneously and continuously well-mixed conditions, like if you blow a smoke ring, the moment it exits your mouth it immediate spreads evenly throughout the room. Under such conditions, of course distance doesn't matter!
      5 replies 33 retweets 247 likes
      Show this thread
    7. zeynep tufekci‏Verified account @zeynep 24 Apr 2021

      zeynep tufekci Retweeted Joseph Allen

      Leading aerosol/ventilation scientist after another has tried to get CNBC to correct the dangerously misleading headline and framing. Still no go. Distance of course matters, but isn’t 100% protective in a poorly-ventilated space over time. Shouldn’t be this hard.https://twitter.com/j_g_allen/status/1385892995233468417 …

      zeynep tufekci added,

      Joseph Allen @j_g_allen
      Replying to @zeynep @linseymarr @jljcolorado
      Debunked in one image... https://www.nytimes.com/interactive/2021/02/26/science/reopen-schools-safety-ventilation.html … pic.twitter.com/fNHfBQ1Qgo
      5 replies 80 retweets 334 likes
      Show this thread
    8. zeynep tufekci‏Verified account @zeynep 24 Apr 2021

      zeynep tufekci Retweeted Linsey Marr

      See these this three tweets for more on the problem with the headline/framing that @kprather88 @linseymarr @jljcolorado @j_g_allen tried to explain among many others (out and about lost track of the many who tried).https://twitter.com/linseymarr/status/1385752349738688518 …

      zeynep tufekci added,

      Linsey MarrVerified account @linseymarr
      Replying to @CNBC
      Please fix this headline, as the model they used ASSUMES that the room is instantaneously and continuously well-mixed, like if you blow a smoke ring, it immediately spreads evenly throughout the room in zero seconds. The headline is a tautology. @zeynep /1
      6 replies 13 retweets 127 likes
      Show this thread
    9. zeynep tufekci‏Verified account @zeynep 27 Apr 2021

      Enough already. This headline is dangerously misleading. Distance does a lot of work, even indoors, but if the location is enclosed then, OVER TIME, the air will mix to farther away places (though viruses also lose infectivity over time). @Marianne_Guenot https://twitter.com/wesyang/status/1387069955343097856 …pic.twitter.com/oToyKAIgEF

      5 replies 44 retweets 182 likes
      Show this thread
    10. zeynep tufekci‏Verified account @zeynep 27 Apr 2021

      zeynep tufekci Retweeted sam

      Thread⬆️ has many aerosol scientists. Our paper below explains why distance matters for airborne transmission. TBH, this is the cost of global health agencies not stepping up to provide correct transmission explanations. Misinformation thrives in a vacuum.https://twitter.com/samuelmehr/status/1386837096313368582?s=20 …

      zeynep tufekci added,

      sam @samuelmehr
      until now I had only read the "COVID is airborne" coverage and not the actual paper (in @TheLancet by @DFisman @zeynep et al) it is beautifully written and *utterly* convincing, a model of scientific prose https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)00869-2/fulltext … here's the whole piece: pic.twitter.com/VfxloWAwG4
      Show this thread
      3 replies 20 retweets 130 likes
      Show this thread
      zeynep tufekci‏Verified account @zeynep 28 Apr 2021

      Oh my goodness, STOP! That study—a model—did not find that distance offers "no protection". The model *assumed* the air was continuously and completely mixed in an enclosed space! That's not how real life works. Indoors, air does mix *over time* but also virus loses infectivity.pic.twitter.com/cbsnPGKuZo

      5:46 AM - 28 Apr 2021
      • 67 Retweets
      • 326 Likes
      • erdinc uslu 💨💧🌡️🕸️HEPA Filtre / 🚦CO2 Ölçümü Garf Funny how secrets travel on Figo Lambo james_robinson Peter Flynn Lara 😷 #𝙲𝙾𝚅𝙸𝙳𝚒𝚜𝙰𝚒𝚛𝚋𝚘𝚛𝚗𝚎 Greg Ezikiel Snow
      9 replies 67 retweets 326 likes
        1. Dem‏ @gk_mul 28 Apr 2021
          Replying to @zeynep

          You are asking Betsy McCaughey, who has a decades long career of doing exactly this, to stop. She nor that rag that she wrote in will stop at this. It is too lucrative to stop.

          0 replies 0 retweets 5 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. BeepBoop‏ @Sargonnis 28 Apr 2021
          Replying to @zeynep

          I just don’t understand how someone can conceptually believe the risk is going to be equal at 3 ft and 60ft. Utter nonsense.

          1 reply 0 retweets 4 likes
        3. Sebastiaan Besselsen‏ @sbesselsen 28 Apr 2021
          Replying to @Sargonnis @zeynep

          Right it’s absurd on its face. But then again the target audience probably believes the risk is equal to 0 at all distances

          0 replies 0 retweets 5 likes
        4. End of conversation
        1. 𝓢𝓶𝓪𝓵𝓵1𝓵𝓭𝔂 "The World..It Is A Changing"‏ @small1ldy1 28 Apr 2021
          Replying to @zeynep @bannerite

          Let's be honest, it's the @newyorkpost. Nuff' said.

          0 replies 0 retweets 1 like
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. Eilat Glikman‏ @eilatg 28 Apr 2021
          Replying to @zeynep

          I get that “distance in feet” is a metric people can understand, but wouldn’t density of people in a given enclosed space combined with air exchange (and currents, I suppose too) matter as much if not more?

          2 replies 0 retweets 2 likes
        3. Dave  🌵 🚴‍♀️ 🎸‏ @HikerDave57 28 Apr 2021
          Replying to @eilatg @zeynep

          Density schmensity. McCaughey advocated against the 6 foot rule in the article with the example of hotel banquets that can’t get to full capacity. She completely ignores the value of reduced density of people in a space.

          1 reply 0 retweets 1 like
        4. Show replies
        1. Joe‏ @JoeR42 28 Apr 2021
          Replying to @zeynep

          When you look at the other articles she's written on the side of that screenshot, her (likely intentional) misinterpretation of that study becomes far less surprising.

          0 replies 0 retweets 6 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. Linsey Marr‏Verified account @linseymarr 28 Apr 2021
          Replying to @zeynep

          The reporting has run off into la-la land. I talked with @bellwak @washingtonpost, who might run a clean-up article, but the real story isn't nearly as exciting/alarming.

          5 replies 2 retweets 47 likes
        3. FactsMon‏ @FactsMon 28 Apr 2021
          Replying to @linseymarr @zeynep and

          What reporting? This is in the NY Post, an entertainment pub

          0 replies 0 retweets 1 like
        4. End of conversation
        1. New conversation
        2. Aram Harrow‏ @quantum_aram 28 Apr 2021
          Replying to @zeynep

          The paper clearly explains why mixing is much faster than losing infectivity or settling. The problem with the NY Post story is that 3' really is more dangerous than ≥6' because of large short-range droplets.

          1 reply 1 retweet 3 likes
        3. Michael Yartys‏ @MichaelYartys 28 Apr 2021
          Replying to @quantum_aram @zeynep

          Even at short range exposure is dominated by aerosols. You more or less have to be in someones face for large ballistic droplets to dominate.

          1 reply 0 retweets 1 like
        4. Show 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

        • © 2022 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info