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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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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

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    1. zeynep tufekci‏Verified account @zeynep 23 Apr 2021

      zeynep tufekci Retweeted CNBC

      Before this gets out of hand. "Distance doesn't matter" IS NOT what "it's airborne" or primarily aerosol-transmitted means or implies, and the headline is not reflecting correctly a modeling paper they are using says. Calling in @linseymarr and @jljcolorado among others.https://twitter.com/CNBC/status/1385628971086323719 …

      zeynep tufekci added,

      CNBCVerified account @CNBC
      MIT researchers say you're no safer from Covid indoors at 6 feet or 60 feet in new study challenging social distancing policies https://cnb.cx/3emvs7Q 
      56 replies 702 retweets 2,339 likes
      Show this thread
    2. 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
    3. 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
    4. 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
    5. 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
    6. 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
    7. 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
    8. 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
      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
      5:18 PM - 24 Apr 2021
      • 13 Retweets
      • 127 Likes
      • Nora Rawn THEE LauraAzar Gag Halfrunt ✍️🩸🦷🌊 Jaime van Kessel Jay Feldblum klara tovhult Kranxie Lenoy Avidan Michelle Allison
      6 replies 13 retweets 127 likes
        1. New conversation
        2. 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
        3. 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
        4. 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

          9 replies 67 retweets 326 likes
          Show this thread
        5. End of conversation
        1. New conversation
        2. melody joy kramer‏Verified account @mkramer 24 Apr 2021
          Replying to @zeynep @kprather88 and

          There should be a you covering every beat like this.

          1 reply 0 retweets 7 likes
        3. Kimberly Prather, Ph.D.‏Verified account @kprather88 24 Apr 2021
          Replying to @mkramer @zeynep and

          💯💯💯

          0 replies 0 retweets 1 like
        4. End of conversation
        1. Dandelion Iowan Fully Vaxxed‏ @JohnDKnight2 24 Apr 2021
          Replying to @zeynep @kprather88 and

          By now my brains have melted and leaked out my ear. Filters, air circulation and distance = safety.

          0 replies 0 retweets 0 likes
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        1. Aviv Ovadya  🥦‏ @metaviv 24 Apr 2021
          Replying to @zeynep @kprather88 and

          Aviv Ovadya  🥦 Retweeted Aviv Ovadya  🥦

          Can we cc @Dawn_Kopecki and @richmendezcnbc?https://twitter.com/metaviv/status/1386116562411614213 …

          Aviv Ovadya  🥦 added,

          Aviv Ovadya  🥦 @metaviv
          Replying to @linseymarr @CNBC @zeynep
          Curious why now one is ccing the the reporter @richmendezcnbc or the senior editor who is tweeting this out, @Dawn_Kopecki? Responding to the main account for a news organization for a correction is ~ useless in my experience. Shouting into the void.
          0 replies 0 retweets 0 likes
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        1. New conversation
        2. Mohammad‏ @M0h4mm4d18 24 Apr 2021
          Replying to @zeynep @kprather88 and

          @threadreaderapp unroll

          1 reply 0 retweets 0 likes
        3. Thread Reader App‏ @threadreaderapp 24 Apr 2021
          Replying to @M0h4mm4d18

          Sorry this content is not available on Thread Reader 😕 It has been removed by the author. 🤖

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. Mark Floyd‏ @MarkFlo16107020 24 Apr 2021
          Replying to @zeynep @DFisman and

          Thank you so much! The headline really had me spooked Since my wife is a school teacher.

          0 replies 0 retweets 0 likes
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