For me it’s probably speech therapy and everything pertaining to that. I’m yet to encounter someone on here who is one apart from me (in training).

What about you?

  • 𝕱𝖎𝖗𝖊𝖜𝖎𝖙𝖈𝖍@lemmy.world
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    11 hours ago

    I undoubtedly know more about fire than the average user here.

    I’m a circus performer with a decade of experience with fire performance/tech/safety. I teach other fire performers from beginners to professionals.

      • 𝕱𝖎𝖗𝖊𝖜𝖎𝖙𝖈𝖍@lemmy.world
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        11 hours ago

        I started with fire spinning as a hobby and attending events. Eventually I got to manage a fire venue, received an invite to join a historic circus (Coney Island), and became a fire safety lead for a large fire retreat. The most important pillar for all this has been community.

        Unfortunately I had to flee the US (thanks Trump) so I’m taking things slow for the moment, but I have huge plans for the future

  • someacnt@sh.itjust.works
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    13 hours ago

    I am sure there are some cryptologists here, soo… Nothing? Anyway, I know a bit about how RSA is inferior to eliptic-curve based schemes, and how security can be such a diverse and complicated topic than simple two-party communications.

  • CanadaPlus@lemmy.sdf.org
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    18 hours ago

    Anything remotely rural. It makes sense that Lemmy would be mostly city-dwellers, but I still manage to be surprised by the gap.

  • bss03@infosec.pub
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    16 hours ago

    Graded Modal Dependent Type Theory, but that’s mostly because only “dozens of” people know it exists.

    • someacnt@sh.itjust.works
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      13 hours ago

      What kind of grading do you give there? I guess the modal part is about the contexts for the type theory, but it has been some time I have looked into it.

      • bss03@infosec.pub
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        3 hours ago

        I think “graded” in the name is there in contrast to “quantitative” type theory, which doesn’t have modalities/quantities at the type-level.

        The “modal” is borrowed from modal logic. If you pick the correct semiring, you can recover linearity and affine-ity and the other substructural logic pieces.

        The quantitative semiring I’ve been working with is 0, 1, ?, n, +, *, which I think will let me use static analysis to do very precise non-strictness and precise/early resource tracking/release. (But, my progress is so slow, that if this were an academic project, I don’t think I’d be getting any more grant funding.)

  • Cheesus@lemmy.ca
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    15 hours ago

    Plumbing, since I’ve been a professional plumber in both North America and Europe. Not the most interesting knowledge base but alas, it is what it is. Other than that, Age of Empires II maybe?

  • QualifiedKitten@discuss.online
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    18 hours ago

    Cats, particularly kittens. I do a whole lot of fostering, particularly with very young and/or sick kittens. At this very moment, I have 16 fosters from 4 different litters.

  • Canopyflyer@lemmy.world
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    1 day ago

    Skydiving

    ~4500 jumps that included; night jumps, competition 4-way and 8-way, a couple of record jumps (I was on the a team that set state records in 3 different states back in the day) , Demos into various stadiums, air shows and a couple of NASCAR races.

    I might know a thing or two that the average Lemmy user has no idea about.

    • PodPerson@lemmy.zip
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      17 hours ago

      Neat - paraglider here, but I know zero things about skydiving. It does seem to be common though, from talking to PG instructors, that skydivers learning PG tend to be very heavy handed with the controls. Just remember smooth and light if you ever try it out. :)

      • Canopyflyer@lemmy.world
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        16 hours ago

        Depending on the size of the canopy, there can be a fair amount of pressure required to pull a toggle. Tandem rigs, which have 500ft^2 mains are somewhat difficult to guide by one person. Most TM’s that I know require their passenger to help out. Not that they cannot be flown by one person, just that doing that 10 times a day wears a person out.

        My personal mains: PD Spectre 150 and 135, and Sharp Chuter (used for demo jumping) all had very different toggle pressures. The Sharp Chuter being the heaviest. It was also 90ft^2 larger (240ft^2) than my Spectre 150. My 135 had almost negligible toggle pressure. The smallest canopy I’ve ever jumped was a Velocity 103 and that thing has almost no toggle pressure what so ever. Plus with such high wing loading made it down right twitchy. Personally I was never one for ultra high wing loadings. Having 40mph approach speeds to landing was never appealing even when I was young.

        Also skydiving canopies are a LOT more square than a paraglider. While I could not explain the physics there, it seems to me that a thin wing would have lighter toggle pressures. Canopies that I’ve jumped that were more tapered seemed to have a lighter toggle pressure of equally sized non-tapered canopies. A paraglider canopy is extremely tapered compared to a skydiving chute.

        Also, don’t you folks have 6 risers? While there have been 6 riser skydiving rigs, they are very uncommon. So each riser requires a lot more pressure to pull… I’m assuming paraglides do riser turns and other maneuvers with them.

        There is a Paragliding club here where I live. Even met one when he landed at a local park when I was out walking. I currently have one kid in college and another going to be there in a couple of years, so it’s not going to be anytime soon, but I would love to try it out. I’d love to get back into the air. Skydiving is pretty much out, as I have a back injury that could be made really bad with a hard opening.

        To make a short story long… Yeah, I can see a skydiver being ham fisted with a paraglider. A jumper with a lot of experience with very high wing loading (over 2.0 to 1) might not, but me? Yeah, I’d probably ham it up for the first few hours. It would be interesting to learn just how much skydiving canopy experience would translate. I’m sure some would, but definitely not all.

        • PodPerson@lemmy.zip
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          15 hours ago

          Cool - thanks for the details about your gear. Fun to learn about the other adjacent disciplines.

  • csm10495@sh.itjust.works
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    1 day ago

    My cat’s thought process. I can tell when she’s getting annoyed or when she wants to randomly barf. It’s like a spidey sense.

  • rabber@lemmy.ca
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    23 hours ago

    Heavy metal and I actually doubt there’s anyone here who’s more of a walking encyclopedia

    • Druid@lemmy.zipOP
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      1 day ago

      I’m sorry to hear that - I hope you’ve had the chance to heal from your experiences 💜

        • Druid@lemmy.zipOP
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          1 day ago

          It’s a very important subject to talk about and it’s awesome that you’ve dedicated yourself to doing that

          • Lady Butterfly she/her@reddthat.com
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            1 day ago

            That’s really nice of you thanks so much! Here is a fact for free… DA perps of course use coercive control to trap the victim. Cult leaders, terrorist cells, organised crime groups etc also use it but on a bigger, better resourced scale.

  • MrEff@lemmy.world
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    1 day ago

    So cool meeting someone in the CSD field! I did my undergrad in CSD, but went for audiology. I have my AuD and am finishing up a PhD (I also did a MS in neuro, but that was because the classes mostly lined up with the PhD and the tuition was free). I swear, finding people outside of tech on lemmy is rare. Finding someone inside of CSD is even more rare. Now I’m curious if I am going to find any other audiology people…

      • MrEff@lemmy.world
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        1 day ago

        Haha, I love audio. I used to be an audio engineer. It didn’t pay well so I went back to school with my GI bill and went for audiology. The dual doctorates actually helped bring the cost down at the expense of staying in school longer. As long as you are in the PhD program your tuition is waved and you get paid a stipend for being a TA/RA. So I planned for my GI bill to run out after my first year, then have been on PhD funding since. The only time I have paid tuition for my doctorates has been when I was on my externship. Then for the masters, it is called a “masters along the way” with no thesis required because I am in a PhD program doing a dissertation. And because neuroscience is in the same college as audiology, most of the classes overlap. I only had to take 5 more classes total. So I stacked 2 during covid (plus mt Aud/PhD classes) when everything was online and did 1 extra a semester for 3 semesters after that. Again, the only downfall of the free tuition is I am spending more time in school not making a my salary potential, but at least I have far less debt than my classmates.

    • Druid@lemmy.zipOP
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      1 day ago

      Audiology 💀 We have an audiologist/phoniatrician that used to be our school’s medical “lead”, so to speak, that is super knowledgeable when it comes to her field and did a lot of scientific work and research for FEES, but she is such a terrible teacher. Every class she’s taught are traumatised by her teaching, which is such a shame because she knows so much.

      We’ve got a couple graduates who work with her - they seem to be able to ignore her ways of being a terrible human being :D