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Joined 2 years ago
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Cake day: March 28th, 2024

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  • Age is the big factor. It does two things:

    1. Eggs gradually lose water, which introduces more air into the air cell and between the membrane and the shell, making it all a bit looser as you peel.
    2. The pH increases, reducing the attraction/attachment of the boiled egg white to the membrane, which is why fresh egg shells are more likely to tear strips of white off as you peel.

    Eggs in the US can be up to 60 days old at the time of packaging, then are considered good for another 45 days. Large flats of eggs can contain eggs from multiple batches of varying age, so some eggs might be two weeks old and others two or more months.




  • Yep, traditional (non-phylogenetic) taxonomy creates problems like protists, the grab bag of eukaryota.

    There are more species labeled protists than the sum of all their descendants.

    Are they animals, plants, or fungi? Sure, why not!

    Some are heterotrophs (eat things), some are autotrophs (energy from sun or chemicals), and others are mixotrophs (some of both). Some are motile, others immotile. Some are multicellular, most unicellular.

    The problem is all taxonomy is arbitrary, and traditional taxonomy is pretty inconsistent. Phylogenetic taxonomy is still arbitrary, but using evolutionary relationships instead of “this monkey looks like other monkey” at least gets you more consistency in that system.


  • I’m a microbiologist. I can speak from experience (my grad research required attempting this a few times) that entirely sterilizing anything of microbes is incredibly difficult regardless of technology level. They are tenacious little fuckers. I’ll lay this out for anyone interested.

    Gotta Kill 'Em All: Most microbes are fairly easy to kill using simple physical and/or chemical means. Some are more difficult, like spore formers, bacteria that produce little personal suspension pods when conditions are rough.

    What matters is you start with huge quantities of microbes, they’re everywhere, and you can’t see them. All you need is one to survive to potentially reproduce into vast legions of descendants. Even NASA’s protocol is about lowering the total number, thereby reducing, not eliminating, the probability of causing an issue. Miss the wrong microbe in the wrong environment and you’ve inoculated a planet.

    Checking Your Work: How do you verify that you successfully sterilized your tool? You might say culturing - swab it and grow that on some type(s) of media. That’s NASA’s protocol! It’s just not very effective.

    Not all microbes grow on all media. There are an estimated one trillion microbial species on the planet and we only know how to culture less than about 0.5% of them. The rest are a mystery, largely uncharacterized*. Most sterility testing is for known microbes of consequence, not every microbe in existence.

    Microbiology is very often a science of slapping your tool or workspace and exclaiming “good enough!”, not absolute precision and 100% efficacy, both of which are practically required if you want to be sure you don’t inadvertently pull a “smallpox blankets from space”.

    *Fun fact: Sometimes people get sick with something atypical, that doesn’t get IDed through standard testing. I worked for a time identifying these pathogens via gene sequencing. There was a whole lot of “that’s a new one” out there.



  • I’m frequently recommending “Complex PTSD: From Surviving to Thriving” by Pete Walker for this. I always knew I had an unusual childhood but didn’t think my parents were abusive, just quirky. As an adult, I started seeing a therapist for anxiety. They strongly recommended this book after our first real session. Surprise: parental abuse so pervasive that I thought it was normal!

    I’ve had a few friends and acquaintances give it a read and they knew within the first few chapters if it was right for them or not.







  • Also “Turned out my father isn’t my real dad” is BS. Genetic test results are useless for determining such.

    Wait, what now? The AncestryDNA test isn’t WGS, but it analyzes 700K loci. One can infer relatedness with an insanely high degree of accuracy with that number. For reference, the standard US paternity test uses 20 loci and it’s more than 99% accurate.

    Or do you mean one needn’t be a biological parent to be a real father to a child? I agree with that 100%.