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Cake day: June 11th, 2023

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  • They don’t actually hate Wikipedia. They hold that it’s not a primary source for things that require citation, and that it’s not a great textbook.

    Reading the Wikipedia page for optics is a bad way to learn optics.
    It’s also difficult to cite as a source because you can’t actually specify who you’re citing, which is why Wikipedia, for research purposes, is a great way to get a quality overview and the terms you need, and then jump to its sources for more context and primary sources as you need them.

    Encyclopedias in general are overviews or summaries of what they reference. Teachers would typically like you to reference something that isn’t a summary or overview when writing one, sincenthat what most of those reports are.


  • Information without context can create a different narrative than that same information with context.

    You see this in racially biased crime reporting. Without context, you see that one demographic is disproportionately prone to being arrested and convicted of crimes. The conclusion being aimed for is the expected racist one.
    With context, you see that criminality is roughly equally distributed, but that certain classes of crime are enforced with prison more often, that different demographics get disproportionately more attention from law enforcement, and that due to socioeconomic factors different demographics are more likely to inhabit income brackets where the likely types of crime are more likely to be harshly enforced.

    Information without context can be misleading. If someone seems to care about the conclusion you take away more than some bit of context that makes that conclusion less forgone, thats a sign they might be pushing a narrative.

    There is, unfortunately, a contrasting rhetorical trick where someone provides such an overwhelming amount of context that you cannot possibly handle all of it in a reasonable amount of time.

    Exactly where the line is is unfortunately not something I think there’s a simple answer for determining. I try to determine if it seems like the person is using the information to support their point, or if they’re using it to drown out opposition.


  • You need to think about what a backdoor looks like for different devices, and different functions of that device. “Backdoor” generally means a way to bypass security measures, but that entails can vary wildly in different contexts. For some things you can know because you can check to see if the hardware is doing what’s expected because the only meaningful backdoor would be local to the hardware.
    For example, hardware based encryption systems can have their outputs compared against a trusted implementation of the same algorithm.

    For cases where there isn’t an objective source of truth for “proper functioning”, or where complex inputs are accepted and either produce a simple answer (access granted/denied), or a complex behavior (logging login attempts and network calls are always expected) it can be harder to the point of impossibility to know that what’s being done is correct.
    This is also the case for bugs, so it can actually be unclear if something is a backdoor or an error.
    “Any sufficiently hair brained programming error is indistinguishable from an attack by a nation state threat actor”. (the goto fail bug is a great example of this. extremely dumb error every programmer has made, or a very well executed and sophisticated attack.

    Ultimately, any system can be compromised by a sufficiently determined attacker. Security cannot be perfect, because at some point you need to trust someone.
    The key is to decide how much you trust each system to handle whatever you need it to handle.
    I trust my phone’s manufacturer as much or more than I trust the network provider. If I’m doing something naughty the person I’m communicating with getting snagged leads to me via the network and their device without needing to compromise my hardware. I choose to focus on the weak link: the people I talk with who might be unable to properly conduct a criminal conspiracy, and getting them up to speed.




  • Accessing that location data isn’t trivial. The data is typically held by various private companies who put up at least token legal resistance to cover themselves from lawsuits.
    Intelligence agencies have their own avenue for getting the data, and on paper they’re not allowed to share it with police agencies.
    Police agencies typically need to specify the individual in question, or the specific location and time to get a warrant. This is because they’re not supposed to be able to blanket surveil an otherwise private piece of information without having a good reason.
    The classic example is not being able to listen to every call on a payphone they know drug dealers use because they’ll listen to people who have not done anything illegal.
    Intelligence agencies are an entirely different thing with weird special rules and minimal and strange oversight.

    This is all relevant because the government doesn’t actually know who’s allowed to be here or not.
    Most people in the country without proper documentation entered legally and then just stayed outside the terms of their entry. The terms can be difficult to verify remotely, which is why you’re not actually here illegally until you go in front of a judge, they deport you, and then you return again.

    Finally, there are significant chunks of the country where location tracking via cell tower is imprecise enough to get the country wrong, and a lot of people live there. So any dragnet surveillance setup is going to have to exclude some pretty large population centers to avoid constantly investigating people in Windsor sometimes quickly teleporting into Detroit.






  • Those aren’t typically used to mask anything, or to let you increase the air quantity. They’re typically used to keep the product stable during freezing, otherwise it can either turn into a brick because they froze too solidly, or because all the air escaped during cold storage.
    In terms of cost savings, it does let them shorten the time needed to let the mix sit before churning, but that’s just because it helps the fat globs come back together easier.

    There’s nothing intrinsically wrong with using the gums. Xanthan is the only one really that isn’t available in an organic formulation, since they’re just bean powders mostly.

    What’s the difference between using coconut oil or pectin like Hagan dazs does (a fat solid at higher temperatures that works as a stabilizer, and a fruit derived gelling agent) and using guar or locust bean gum? They’re all just plant powders and roughly equally processed.



  • Changed with ice cream in general? No. But there are things that have been possible to add to ice cream for a while that do what you describe. It could be that you’re just starting to notice, you shifted brands, or the brand you liked shifted formulations.

    Many people dislike the things that get added to ice cream, and so there are definitely brands out there that don’t include those things.
    In my opinion the worst of the additives is not nearly as bad as a lot of people would make them out to be.

    In the broadest sense possible ice cream is sugar, fat, water and thickener where the fat has been cooled to a solid and allowed to just start to re-form into a lump, the ice hasn’t been allowed to form crystals big enough to notice, and the thickener and sugars glue the fat and ice together such that they trap miniature air bubbles.
    Some people insist that the fat and thickener have to come from cow milk in the form of milk fat and milk proteins, but that’s a bit pedantic for my tastes.

    The easiest way to cheap out on ice cream is to add a lot more air. Since we sell it based on volume, if we churn more air into it we get more ice cream to sell for the same quantity of ingredients, and the only effect is that the ice cream is lighter, softer and fluffier.
    There’s a legal maximum to how much air you can mix in though.

    The next hurdle you run into is that milk proteins are actually kinda shit at keeping those air bubbles trapped. Adding things like guar gum or carrageenan will make it much gloopier and hold those air bubbles better.
    This makes the ice cream last longer in a warehouse without the bubbles getting out and leaving your ice cream as a brick.

    Next is rampant ice crystal spread, which can turn the ice cream into a brick in the warehouse. This can be slowed down using something called methylcellulose. It’s basically processed plant fiber ground into a powder. It’s also used in pills as the inert binder, and as a dietary fiber source.
    It’s popular because is known to be safe and inert, it’s very cheap, it prevents ice crystal formation, and it has the fun quirk of getting thicker as it warms, for the added property of keeping your ice cream fluffy and areated as it warms up on your drive home.

    Finally, you can tweak the fat blend. This one isn’t as common because milk fat is already insanely cheap since we subsidize the hell out of the dairy industry.
    Changing the blend to use fats that are solid at higher temperatures does have utility for things you expect to be eaten slower, at higher temperatures, or if you want parents to not be mad that your ice cream makes kids extra sticky.

    By far the biggest way that I’ve cream will save costs is by putting as much air in it as possible. It lets them sell you less in the same size box for the same price.
    It’s a case where shrinkflation means making things bigger, which is fun.

    The brands that didn’t take that route invariably rebranded as “premium” ice creams, so they can charge more for the same thing without raising consumer ire.


  • Some are random and have no disadvantage, so they stick around. Others have an advantage that may or may not still be relevant.

    High melanin levels help with bright equatorial sun. Low melanin levels help with vitamin D synthesis in areas where there’s less sun.

    Curly African hair is better at protecting the scalp from the sun and heat. There’s less hair follicles overall, allowing for better airflow and the tight curls keep the hair away from the scalp allowing it to cool better. This also meant less sweating, which made it easier to remain hydrated and clean.
    Straighter hair tends to be more dense, and to do a better job keeping you warm.

    A lot of the other traits are random, or in genes connected to the general melanin genes, since evolution is unlikely to specifically target just the melanin levels of skin, and not the overall melanin level.

    Some traits are also a result of sexual selection. Peacocks have large, vibrant plumage because it helps them attract a mate. Some human characteristics are the same. We essentially selectively bred ourselves based on the whim of aesthetics.

    Finally, much of what we consider racial differences between people are social constructs.
    That’s not to say that the differences aren’t real, but that the racial division is a relatively arbitrary line.
    For example, I’m nearly a foot taller than my wife. My ancestors wandered up from Africa, landed in Scandinavia and then drifted to Scotland and southern England before coming to the Americas and getting mixed up in the Canadian fur trade in the 1600s. My wife’s ancestors stopped in Germany before coming to the Americas in the late 1800s.
    Our children are not considered mixed race because our skin is the same color, even though the actual lineage is pretty distinct.

    We decided that skin color is a race marker, but not things like “height”, “toe and finger length”, or things like that.
    Except for where we did, like when European colonizers relatively arbitrarily decided that different traits were racial markers amongst the colonized, like nose shape and chin thickness.

    All that to say, much of what we consider obvious racial differences that stand out are only such because we decided to pay attention to them. Other perfectly visible variations are just normal individual variations.



  • I have an assigned voting location, but there are several in my district that are all “valid”, and I was just assigned the one closest to my house. If I were to be confused and go to a valid location I wasn’t assigned to, I’m still in the ledger. Since I’m attempting to vote in the correct district, they don’t really have grounds to turn me away.

    If I were in the wrong district, I’m still allowed to cast a provisional ballot, which lets you vote but they sort it out later.

    You can also vote absentee and then also in person and not disclose that you need to invalidate the absent vote. Here that’s automatic, but in some places it’s a crime.

    You’re also allowed to go to a clerks office, which has the equipment to print any ballot and handle it correctly.


  • The exact specifics vary based on the state, but it’s roughly the same in each of them.
    You track the voter, ballot, collection and counting.

    Voter A issued ballot 3. Ballot 3 collected Ballot 3 counted.

    The counting phase involves removing the tracking number from the ballot before removing a cover that keeps the vote private.

    You can’t slip an extra ballot into the box because then the totals don’t add up, and you know where in the process the discrepancy occurred.
    Making sure there are multiple eyes on issuing and counting means it’s hard to create or count a fake ballot.
    When not observed by multiple people, the containers are locked with multiple locks with keys held by different people.

    It’s why most voter fraud is a voter going to multiple valid voting locations to vote multiple times. Once the tabulations begin, you see you counted the number collected, collected the number issued, and that you issued one ballot to each voter except one, who got three.