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. Alex Merz‏ @Merz 20 Dec 2021
      Replying to @Merz @jljcolorado and

      What this tells me is that rather than talking forthrightly about uncertainties in your interpretation, you are more than willing to simply assert that they are not uncertainties.

      2 replies 0 retweets 1 like
    2. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 20 Dec 2021
      Replying to @Merz @kprather88 and

      I have talked a lot about uncertainties. Have looked for such data for a long time, and I have observed the distance myself, and not seen a clear difference. But let's say that there is 10-20% more distance. Would that cut transmission x20? That's not plausible.

      2 replies 0 retweets 46 likes
    3. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @jljcolorado @Merz and

      Off the top of my head, why would ventilation matter indoors if it were mainly droplets, as ballistic particles, same behaviour. Why would plexiglass—which would block droplets—be associated with *higher* rates of infection, as predicted from aerosols, via ventilation dead zones.

      2 replies 8 retweets 72 likes
    4. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @jljcolorado and

      Why would HEPA filters work? They aren't between you and the person you are speaking with, should be irrelevant for droplets. How could there be so much overdispersion with a mainly droplet, thus, ballistic trajectory, particles?

      3 replies 5 retweets 51 likes
    5. Alex Merz‏ @Merz 20 Dec 2021
      Replying to @zeynep @jljcolorado and

      I'm not arguing against aerosol transmission, Zeynep, as you'd know if you'd read the thread. I'm persuaded that aerosol transmission occurs and that it is a significant component of total transmission. But the evidence that transmission is only or mainly aerosol is weak.

      7 replies 0 retweets 5 likes
    6. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @Merz @jljcolorado and

      I don't think there is any way to avoid "mainly" aerosol transmission and fit the known facts and physics. The indoor/outdoor difference in epi, the ventilation matters indoors data, HEPA filter role, the overdispersed dynamics... Other mainly airborne diseases look like this.

      1 reply 3 retweets 45 likes
    7. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @Merz and

      Alternative would require some evidence, and a framework that fits known facts. I am open to one, including one where aerosols aren't predominant or "mainly." But none has come up, and I've been looking, either from the data or as even a "for example" framework.

      1 reply 1 retweet 26 likes
    8. Alex Merz‏ @Merz 20 Dec 2021
      Replying to @zeynep @jljcolorado and

      The indoor/outdoor difference is an absurdly weak argument.

      1 reply 0 retweets 1 like
    9. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 20 Dec 2021
      Replying to @Merz @zeynep and

      I beg to differ, if you look at the physics, both that and the impact of ventilation are impossible to explain with ballistic droplets.

      3 replies 3 retweets 58 likes
    10. zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @jljcolorado @Merz and

      Indeed. Gravity is the same indoors and outdoors, the difference can be this big if floating particles rather than ballistic ones are driving transmission. Sunlight can matter, but as Jose says, basic science of it says it can't be that big. I repeat: open to a theory that fits.

      4 replies 2 retweets 32 likes
      zeynep tufekci‏Verified account @zeynep 20 Dec 2021
      Replying to @zeynep @jljcolorado and

      Need a theory of observed epidemiology that fits physics, virology, mitigations and their results. I've yet to encounter one on it being mainly droplets—close contact being important fits both theories, but little else does. (Where is all the close contact outdoors transmission?)

      3:16 PM - 20 Dec 2021
      • 1 Retweet
      • 20 Likes
      • Scott Beaumont 🏴 John McLean OBKG Don Oltmann Daniel Tim Lach douglawrence Dirk K SameOld #CovidisAirborne
      2 replies 1 retweet 20 likes
        1. New conversation
        2. Joe‏ @twitskeptic 20 Dec 2021
          Replying to @zeynep @jljcolorado and

          Has it ever occurred to you that there just isn't enough evidence to decide? The over certainty of some of the covid social media influencers drives me crazy. I guess you don't get a lot of followers when you say "we just don't know yet."

          3 replies 0 retweets 2 likes
        3. Alex Merz‏ @Merz 20 Dec 2021
          Replying to @twitskeptic @zeynep and

          I think Yeats said something about social media, along those lines.

          0 replies 0 retweets 1 like
        4. End of conversation
        1. Don Oltmann‏ @oltmannd 20 Dec 2021
          Replying to @zeynep @jljcolorado and

          You would see a lot of transmission at NFL and college football crowds if it was ballistic droplets.

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo

      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