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Joined 4 months ago
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Cake day: July 7th, 2024

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  • This is somewhat misleading. Here’s a section from near the beginning of a scientific review I linked in my reply to @ChuckEffingNorris@lemmy.ml:

    To reduce spread of respiratory diseases, we need to understand the mechanisms of spread. There is strong and consistent evidence that respiratory pathogens including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), respiratory syncytial virus (RSV), influenza, tuberculosis, and other coronaviruses such as MERS and SARS-1, are transmitted predominantly via aerosols. Infected individuals, whether symptomatic or not, continuously shed particles containing pathogens, which remain viable for several hours and can travel long distances. [Emphasis mine.] SARS-CoV-2 is shed mainly from deep in the lungs, not the upper respiratory tract, and the viral load is higher in small aerosols (generated in the lower airways) than in larger droplets (generated in upper airways). Whereas large respiratory droplets emitted when people cough or sneeze fall quickly by force of gravity without much evaporation, those below 100 µm in diameter become (bio)aerosols. Even particles tens of microns in diameter at release will shrink almost immediately by evaporation to the point that under typical conditions they can remain airborne for many minutes. In contrast with droplet transmission, which is generally assumed to occur via a single ballistic hit, the risk of airborne transmission increases incrementally with the amount of time the lung lining is exposed to pathogen-laden air, in other words, with time spent indoors inhaling contaminated air.

    Respiratory infections may theoretically also be transmitted by droplets, by direct contact, and possibly by fomites (objects that have been contaminated by droplets), but the dominant route is via respiratory aerosols. The multiple streams of evidence to support this claim for SARS-CoV-2 include the patterning of spread (mostly indoors and especially during mass indoor activities involving singing, shouting, or heavy breathing), direct isolation of viable virus from the air and in air ducts in ventilation systems, transmission between cages of animals connected by air ducts, the high rate of asymptomatic transmission (i.e., passing on the virus when not coughing or sneezing), and transmission in quarantine hotels when individuals in different rooms shared corridor air but did not meet or touch any common surface.


  • Masks and respirators for prevention of respiratory infections: a state of the science review

    I recommend giving this a read when you have the time, it should hopefully answer any questions you have and better than I can.

    An assumed droplet and contact mode of transmission leads to prevention policies that center on handwashing and surface cleansing, maintaining 2-m physical distancing, wearing medical masks (whose waterproof backing is designed to stop droplets) within that 2-m distance (especially when attending an infected patient), using physical barriers (e.g., plastic screens) and providing health-care workers with higher-grade respiratory protection only when undertaking AGMPs. However, if the virus is transmitted significantly by the airborne route, different prevention policies are needed, oriented to controlling air quality in indoor spaces (e.g., ventilation and filtration), reducing indoor crowding and time spent indoors, wearing masks whenever indoors, careful attention to mask quality (to maximize filtration) and fit (to avoid air passing through gaps), taking particular care during indoor activities that generate aerosols (e.g., speaking, singing, coughing, and exercising), and providing respirator-grade facial protection to all staff who work directly with patients (not just those doing AGMPs)

    This is why I specified N95 respirators in my first comment. If you are unfamiliar, N95 is a NIOSH air filtration rating, which is used to describe the ability of a respirator to protect the wearer from airborne solid and liquid particulates. The review I linked goes into more details on this as well. I recommended N95 or better specifically because Covid is the illness I’m most concerned with avoiding, and the evidence suggests that they provide meaningful protection over lower grade respirators or surgical masks. Another quote from the link above that stood out to me:

    The certification of surgical masks for particle/bacterial filtering efficiency (P/BFE) does not reflect equivalence to respirators as the filtration is typically compromised by poor face seal. The ASTM F2100-21 P/BFE certification, for example, requires at least 95% filtration against 0.1-µm particles and at least 98% against aerosolized Staphylococcus aureus, but this is on a sample of the mask clamped in a fixture, not on a representative face. In terms of filtering aerosols, N95 respirators outperform surgical masks between 8- and 12-fold. The effectiveness of certified surgical mask material against transmission when used as a filter was demonstrated in a hamster SARS-CoV-2 model. Infected hamsters were separated from non-infected ones by a partition made of surgical mask material; when the partition was in place, transmission of SARS-CoV-2 was reduced by 75%.

    In addition to protecting the wearer, respirators provide very effective source control by dramatically limiting the amount of respiratory aerosols emitted by infectious individuals. In one study, risk of infection was reduced approximately 74-fold when infected, and susceptible individuals both wore well-fitting FFP respirators compared to when both wore surgical masks.

    As for one-way masking, well, it is unfortunately significantly less effective (from what I understand), and is a big part of why I’m so concerned by others not masking. I simply cannot avoid being around others all the time, and their lack of effort is directly endangering me and my wife. If it really all came down to personal choice, I wouldn’t care if people wanted to risk their health. Still, while I don’t have any studies or anything to link you at the moment specifically on the effectiveness of one-way masking, all I know is that I mask and don’t get sick, and they don’t mask and do get sick. It’s anecdotal, sure, and I’m certain the mask is not the only thing affecting this, but as far as I can see it’s the largest difference in our behavior. I’ve heard as well that wearing a respirator will reduce viral load should you be infected despite the filter, and so your sickness will be less severe, but I don’t have any evidence on hand for this.








  • By “neat and easy” I mean, “The root of all evil is capitalism and we solve that with revolution”.

    This is exactly why they are responding to you as they are. This is not an accurate summary of the marxist position. You’ve built up a strawman to knock down to justify calling us cultish.

    Some basic questions that marxists are concerned with:

    • Why is a revolution necessary to begin with?

    • Who is exploited, and who is the exploiter?

    • What material conditions are necessary for a revolution to be possible?

    • How do you organize society post-revolution?

    • How do you prevent those who oppose the liberation of the proletariat from taking over your post-revolutionary society and destroying it?

    • How do we learn from the successes and the failures of history so that we don’t repeat the same mistakes?

    If you don’t understand the marxist position on these questions, yet continue to criticize us, then of course you will come to nonsense conclusions and just piss people off. You’ve made up a guy to represent us and then mock them.


  • So when people constantly call us deluded, cult followers, bots, shills, brainwashed, fascists, bigots, trump supporters, and any other number of dehumanizing insults, often coming into our spaces to do so, all the while themselves defending some of the most violent and evil people in history in the name of “lesser evil”, are we supposed to just turn the other cheek and never respond in kind? When we witness the regular defense of the people ensuring the destruction of Palestine continues, are we supposed to just patiently and calmly explain how genocide is bad, actually? When dot worlders accuse me of faking being trans and being a privileged child, am I not justified in losing my temper? Y’all do not even try to understand where we are coming from, constantly use strawman arguments and put words in our mouths, but we’re supposed to smile politely while you spit in our faces? Like this is literally a thread spawning from an OP that is just an ableist insult, and yet some of us are still in here trying to talk things out despite that!

    And it’s not like it’s limited to Lemmy, right? Literally everywhere I go I have to either tolerate anti-communist red scare bullshit, transphobia, ableism, misogyny, etc., or I have to try and have stressful and exhausting conversations with people who never, ever take me seriously. So yeah, we’re kind of on edge! If you get shit on for that when it wasn’t deserved, then I’m genuinely sorry, and I wish it wasn’t something that happens. But can you at the least understand that it is not a one-way street here?






  • Regardless, women’s sports were definitely created to exclude men, if not explicitly, then by necessity, since prior to that there was only one category that men or women were allowed to compete in, but women couldn’t truly compete in those sports against the men.

    I’m pretty sure we are talking about the same thing here, but you are attributing it to women being physically unable to compete versus men, which while it can be a relevant concern depending on the sport, was historically not really the reason they were excluded. Women were heavily discouraged by men to participate even though they were technically allowed to. There’s actually some really interesting connections between women’s sports and feminist movements that help make this connection more apparent, particularly biking and the suffragette movement. I don’t have anything to link on hand but I definitely recommend reading about it. It’s still easy to see this in the modern day if you look at competitive activities where there is no possible argument of a biological advantage, like e-sports or chess, where women could easily be just as successful as men, if the cultures of those games weren’t so dominated by men who view those spaces as theirs, and who view women who come to participate as invaders.


  • and yet they definitely have a genetic advantage over the vast majority of women, to the point where certain events could conceivably be dominated by people with their condition

    Do you have a source for this? Here is a study that came to a very different conclusion.

    Key Biomedical Findings

    • Biological data are severely limited, and often methodologically flawed.
    • There is limited evidence regarding the impact of testosterone suppression (through, for example, gender-affirming hormone therapy or surgical gonad removal) on transgender women athletes’ performance.
    • Available evidence indicates trans women who have undergone testosterone suppression have no clear biological advantages over cis women in elite sport.

    The category was literally made to exclude a segment of the population from competing (men).

    Women’s sports weren’t invented to exclude men, they were invented to include women. This may seem like a minor distinction, but I don’t believe it is because of the clear connection between cis women being excluded from sports due to misogyny, and trans women being excluded from sports due to transphobia.

    (I made this comment on my lemmygrad account originally, but realized you wouldn’t see it then, so I’m reposting it on this account.)