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senkora

@ senkora @lemmy.zip

Posts
13
Comments
96
Joined
3 yr. ago

  • Moon Dust

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  • I think if anything they would be biased towards having fewer allergies than normal people. Which suggests that 0.21% (1 in 500) is a reasonable bound for how rare a moon dust allergy could be.

  • Moon Dust

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  • Assuming a representative sample, the best point estimate is 1/12 (8.33%), and the 95% confidence interval is 0.21% to 39%.

    Longer explanation here: https://lemmy.zip/comment/19753854

  • moon's an allergen

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  • The number of allergic people in a population of size N can be modeled as a Binomial(N, p) distribution, where p is the probability that any individual person is allergic.

    The maximum likelihood estimate for p when we observe 1 allergic person out of 12 is just 1/12, or 8.33%. This is our best guess if we had to name an exact number.

    We can get a 95% confidence interval on the value of p using the Clopper-Pearson method with the following R code:

     
        
> binom.test(x=1, n=12, p=1/12)
…
95 percent confidence interval:
 0.002107593 0.384796165
…

    So we know with 95% confidence that the probability that any individual person is allergic to moon dust is with the range 0.21% and 39%.

    Yeah, okay, that’s pretty useless. I agree with them…

  • The social media experience

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  • This is called context collapse:

    Context collapse or "the flattening of multiple audiences into a single context"[1] is a term arising out of the study of human interaction on the internet, especially within social media.[2]Context collapse "generally occurs when a surfeit of different audiences occupy the same space, and a piece of information intended for one audience finds its way to another" with that new audience's reaction being uncharitable and highly negative for failing to understand the original context.[3]

    https://en.m.wikipedia.org/wiki/Context_collapse

  • @labplot@lemmy.kde.social

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  • Neat! I had never heard of this type of chart before, so I looked it up and found this link explaining how they work: https://sixsigmastudyguide.com/xmr-charts/

    I think the interpretation of this chart is: In the 2020s, there is a statistically significant change in how many people share the Nobel prize in physics (more people are sharing it). We could speculate on what the reason for that could be. All that the data tells us that the effect is meaningful.

  • DOGE Plans to Rebuild SSA Codebase in Months

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  • You can store the Merkle trees inside of a SQLite database as extra columns attached to the data.

    That way you get the benefits of a high-level query language and a robust storage layer as well as the cryptographic verification.

    In fact, there is a version control system called Fossil which does exactly that:

    https://fossil-scm.org/home/doc/trunk/www/fossil-v-git.wiki

    The baseline data structures for Fossil and Git are the same, modulo formatting details. Both systems manage adirected acyclic graph (DAG) of Merkle tree structured check-in objects. Check-ins are identified by a cryptographic hash of the check-in contents, and each check-in refers to its parent via the parent's hash.

    The difference is that Git stores its objects as individual files in the .git folder or compressed into bespoke key/value pack-files, whereas Fossil stores its objects in a SQLite database file which provides ACID transactions and a high-level query language. This difference is more than an implementation detail. It has important practical consequences.

    […]

    The SQL query capabilities of Fossil make it easier to track the changes for one particular file within a project. For example, you can easily find the complete edit history of this one document, or even the same history color-coded by committer, Both questions are simple SQL query in Fossil, with procedural code only being used to format the result for display. The same result could be obtained from Git, but because the data is in a key/value store, much more procedural code has to be written to walk the data and compute the result. And since that is a lot more work, the question is seldom asked.

  • Deleted

    Permanently Deleted

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  • The right balance on this is to set it up to only trim whitespace on lines that you have edited, and only on-save.

    Emacs has ws-butler for that behavior: https://github.com/lewang/ws-butler

  • C++

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  • If undefined behavior is triggered anywhere in the program, then it is allowed by the standard for the process to ask the anthropomorphized compiler to punch you.

    100% based and standards-compliant comic

  • The government doesn't use SQL

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  • The government doesn't use SQL

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  • Small correction to an otherwise great explanation: SSNs are not recycled after death.

    **Q20:  *Are Social Security numbers reused after a person dies?*****A:  No. We do not reassign a Social Security number (SSN) after the number holder's death. Even though we have issued over 453 million SSNs so far, and we assign about 5 and one-half million new numbers a year, the current numbering system will provide us with enough new numbers for several generations into the future with no changes in the numbering system.

    https://www.ssa.gov/history/hfaq.html

  • The seven programming ur-languages

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  • Yes, but it’s a prefix and can’t be used as a word on its own.

    I am a native English speaker and I know it. It’s rare though.

    Same meaning as in German and apparently we borrowed it from German.

    https://en.m.wiktionary.org/wiki/ur-

  • Trust but verify

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  • It’s a risk management strategy where you only do checks afterwards.

    “Trust” means that you don’t make processes wait on passing checks before proceeding, because that would be expensive and/or slow.

    “Verify” means that you have a separate process that comes through and runs checks afterwards, maybe on only some of the things you trusted, to catch issues.

    It’s ideal when you have high-volume and/or low-latency processes where failures are low stakes but you still want to catch systemic issues eventually.

    It’s related to the idea that “the optimal amount of fraud is non-zero”.

  • Cold brew freshness

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  • If you’re going to store it for a few days, then it is best to use a recipe that makes concentrate, which you then dilute before drinking. It tends to hold up better.

  • In case you've ever wondered why the Windows control panel was so awful...

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  • For the first part, I was like, yeah, that’s pretty much how all C++ GUIs work: a markup file describes the structure, a source file controls the behavior, and a special compiler generates more C++ code based on the markup file to act as glue.

    That’s all pretty standard, and it’s annoying, but I didn’t really get why they were making such a big deal out of it.

    Missing documentation is also annoying but not uncommon for internal widgets.

    What really elevates this from simply annoying to transcendentally bad, is the lack of error messages, the undocumented requirements that resource IDs be sequential, and the mandatory IDE plugin. That’s all unforgivable.

  • Deleted

    Permanently Deleted

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  • What you are looking for is some way to shortcut the process of learning to write an operating system by re-using your existing knowledge of Python.

    (I'm not judging that; I understand why you want to do it)

    The simple truth is that there is no way to do that. Any solution that involves using Python in a kernel would cost you more in terms of complexity and time than learning C would.

    It is rarely worth it to use a language outside of the domains that it is normally used for.

  • Interesting Shares @lemmy.zip
    senkora @lemmy.zip
    Video

    Spoken Without Words: Poetry with ASL SLAM

  • How AMD Is Taking Standard C/C++ Code To Run Directly On GPUs

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  • I assume that they mean that OpenCL, which is a traditional GPGPU language, is a very restrictive subset of either C or C++ (both are options) plus some annotations.

    In fact, OpenCL toolchains already use the Clang frontend and the LLVM backend, so the experience of using and compiling them is very close to C++.

    The talk mentions all of this; it says that a benefit of using full C++ on the GPU over using OpenCL is that you don’t have to deal with all the annoying restrictions and annotations.

  • Deleted

    DNC Email Pleads For $20 To Cheer Them Up

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  • I received an actual email requesting a donation from the “Harris Victory Fund” two hours ago.

    Here’s the fine print from the email on where the money would go:

    The first $41,300/$15,000 from a person/multicandidate committee (“PAC”) will be allocated to the DNC. The next $3,300/$5,000 from a person/PAC will be allocated to Harris for President’s Recount Account. The next $510,000/$255,000 from a person/PAC will be split equally among the Democratic state parties from these states: AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY. Any additional funds will be allocated to the DNC, subject to applicable contribution limits.

  • Cold weather gear recommendations

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  • I tend to be warm when running. Around 40 F I’ll put on gloves, and around 32 F I’ll put on a light wool jacket and a beanie. I don’t run outside if it’s colder than that. I never wear long pants; my legs are always warm from the exercise.

  • The president's doctor: Why your projects take forever

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  • I appreciate this. It’s a good overview of what it means to be a productive part of a larger context.

    I prefer the terms “throughput” for “worker productivity” and “latency” for “work-unit productivity” but I can see why they chose to use their terms.

  • Interesting Shares @lemmy.zip
    senkora @lemmy.zip

    Cartogram of the world population by country in 2018

  • Interesting Shares @lemmy.zip
    senkora @lemmy.zip

    Sex, aggression, and humour: responses to unicycling

    www.ncbi.nlm.nih.gov /pmc/articles/PMC2151169/
  • Interesting Shares @lemmy.zip
    senkora @lemmy.zip

    Growing Support for Gay Marriage: Changed Minds and Changing Demographics (USA) (2013)

    www.pewresearch.org /politics/2013/03/20/growing-support-for-gay-marriage-changed-minds-and-changing-demographics/
  • NYC @lemmy.world
    senkora @lemmy.zip

    Everything is Everything: Reviews of bagel shops all around NYC

    everythingiseverything.nyc /map/
  • Bicycling @lemmy.world
    senkora @lemmy.zip

    How Tall Bikes Will Save the World

  • New York City @infosec.pub
    senkora @lemmy.zip

    Animation of the growth of the NYC street grid over time

  • Coffee @lemmy.world
    senkora @lemmy.zip

    All arabica coffee is genetically similar: how can beans taste so different?

    www.nature.com /articles/d41586-024-00165-x
  • boardgames @feddit.de
    senkora @lemmy.zip

    An entertaining tutorial on how to play FlameCraft

  • Coffee @lemmy.world
    senkora @lemmy.zip

    How Long To Steep Cold Brew Coffee - We Tested

  • Coffee @lemmy.world
    senkora @lemmy.zip

    Coffee grind size chart generator

    honestcoffeeguide.com /coffee-grind-size-chart/
  • Coffee @lemmy.world
    senkora @lemmy.zip

    Has anyone ever tried mulled coffee?

    www.olympiacoffee.com /blogs/blog/make-our-mulled-coffee-at-home
  • Bicycling @lemmy.world
    senkora @lemmy.zip

    Threat modelling case study: bicycles

    calpaterson.com /bicycle-threat-model.html