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Cake day: June 15th, 2023

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  • Rednax@lemmy.worldtoScience Memes@mander.xyzPLASTICMAXXING
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    22 days ago

    Huh, I thought that they only filtered your blood when donating plasma, hence the PFAS could simply be returned to you. But I have to admit that I’m far from an expert on this matter.

    Either way, we kinda have returned to bloodletting being a reasonable medical approach.



  • But how does the Rust compiler do that? What does it actually check? Could I write a compiler in C that does this check on a piece of Rust code?

    C is so simplictic, that if I can write a piece of functionality in C, I must understand its inner workings fully. Not just how to use the feature, but how the feature works under the hood.

    It is often pointless to actually implement the feature in C, since the feature already has a good implementation (see the Rust compiler for the memory safety). But understanding these features, and being able to mentally think about what it takes in C to implement them, is still helpfull for gaining an understanding of the feature.




  • I have this experience with a certain type of pedestrian traffic light “button”.

    I quote button, because nothing physically moves when you press it. I’m not sure if it registers pressure or heat, but you don’t even feel anything move when you press it.

    Usually when you press the button, a red text lights up on the button, telling you to wait. This text gives you feedback that the button registered your press, and the traffic light will schedule a green light for you.

    However, sometimes you didn’t press hard enough, and the text doesn’t light up. Simple solution: press harder.

    But there is a scenario where it doesn’t matter how hard you press, the button won’t light up. You keep staring at it, while slamming the damn thing with the fury of a Hulk wealding Mjolnir. Still, nothing lights up. The reason: the light instantly went green, so it never needed to light up the text telling you to wait. And all that time slamming your fist on the button, could have been spend crossing the intersection. Instead you have been standing there, looking like a drunk person having a fistfight with an inanimate object.


  • Sleepy cats can be quite derpy. I once had an unannounced visitor come in via the catflap. The catflap was there from the previous homeowner. What neither I nor this cat knew, was that the catflap was set to entry-only mode. Poor guy got locked up in my kitchen overnight.

    So when I strolled into my kitchen in the morning we looked at eachother, both with the question in our eyes: who the hell are you? So I offered my finger for sniffing, and when approved I slowly petted the sleepyhead. But when I turned around for 5 second to grab my phone, his brain woke up, and suddenly he remembered the trouble he was in, and pannicked. I was suddenly super scary. It took some convincing that the kitchen door was opened to outside, that I wasn’t going to harm him, and that he was free to leave.







  • The “rationale” behind such atrocities is always based on emotion, not actual reason. Usually fear. Analyzing why you feel that fear, and whether it is justified, will help to avoid falling into such logical fallacies.

    Ignoring the fear, and dismissing it as illogical will not help anyone. You have to acknowledge the emotion, and analyse it. Allow it to exist, but avoid acting on it before analyzing it.

    In fact, acting on emotions, especially on fear, will often result in such atrocities. Since it is fear, not reason, that eliminates compassion.

    Ps. I like the discourse. Please don’t see my comments as a personal attack. Even if neither of us changes their oppinion, understanding the other is valuable.


  • But understanding, predicting, and reacting differently on emotions are all learnable, and very rational.

    For example: don’t punch the TV when you are angry about loosing a game. Instead realise where the anger is coming from. Probably frustration, but why are you so frustrated when you loose? Some frustration is understandable, but what causes so much frustration that it turned into violent anger? And can you predict what actions or circumsfamces may result in that frustration or and anger (e.g. alcohol consumption)?

    The most rational fictional species I know, Vulcans, do not lack emotion. Quite the opposite. But they have learned to control their emotions.




  • I remember a javascript library where the was a function that returned, according to the documentation, “a color”. Did it return an object with 3 fields? Were those fields RGB or some other color scheme? Is it a string encoding a color? What format is that string? None of these questions could be answered without just running the code, and analyzing the object you got back.