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Cake day: June 30th, 2023

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  • Buddahriffic@lemmy.worldtoScience Memes@mander.xyzHmmmm
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    9 hours ago

    Variables can be in arbitrary units. If you put the units through the same steps as the values, you’ll end up with the right unit, plus you need the values to be in compatible units for the operations to even make sense. At least as long as any constants are also given the correct units. This can also help discover cases where you accidentally mix similar but different units (like litres and gallons).

    I also find it very satisfying to do those equations on the units, adding ones that get multiplied in and cancelling ones that get divided out, and then ending up with a unit that makes sense, given what the equation was supposed to express.

    Though we might be saying the same thing, because while I don’t think variables need units, expanding that variable with a value absolutely should involve a unit, as should any examples of that equation’s use.

    Edit: an example to show what I mean:

    If you have a table that is 1.5m long and know that you want at least 2 feet between the wall and the table on each side so that people can get in and out if chairs comfortably, you’d have 1.5m + 2*2ft as the equation, but you can’t add an m to a ', so you need to multiply one of them by a conversion factor:

    1.5m + 2 * 0.3048m/ft * 2ft

    The ft terms cancel out and you’re left with

    1.5m + 2 * 0.3048m * 2

    = 1.5m + 1.2192m

    ~= 2.72m

    So your space must be at least 2.72m to fit that table and chairs comfortably (by the above definition of comfort, at least).

    Funny enough, this use of units helped me avoid a mistake in this example because I had the ft/m conversion initially but saw that would result in trying to add m to ft² so it was obvious that I had made a mistake. Otherwise I might have looked like an idiot trying to say that a 1.5m table with 4 feet of buffer space requires a room over 12m long.





  • Oh come on, humans aren’t that unnecessarily cruel! We just cut the feet off several thousand peasants back in the day to determine the average length of human feet and then made a bunch of sticks that length so we don’t have to be so cruel each time we wanted to measure something. We just had to do it that one time.

    “Why cut their feet off instead of just measuring them?”

    It was necessary for scientific rigor, so that others could go back and verify the final result. It’s very important to be accurate using a measurement that is completely relatable to the average human. Funny enough, we later realized that about 300 randomly selected feet would generally get within 5% of the true average, so that makes it even better that we did do that because how else would we have discovered something like that?

    “Wouldn’t that just give an average for peasant feet in that region? For average human foot size, wouldn’t you need to take feet from people who aren’t peasants, like nobles, clergy, and scientists?”

    Well, you see… Hmm. I guess to be completely accurate… That does sound right. Hmm.

    You know, I’ve been hearing great things about the metric system! I mean, who really thinks in terms of how big their feet are anyways?



  • I think it can be further boiled down to a belief that hierarchies are either necessary or good. All of the evil are cases where those higher up in the hierarchy impose their will on those lower.

    Under those beliefs, the meaning of things like “respect” and “good/bad” are different than when one believes that everyone should be considered equal. The politeness version of respect is for equals, when they aren’t equal, respect only needs to go one way and if it’s sent the other way, it’s more “effective management” and not giving respect “downwards” then boils down to a different management philosophy rather than simply being an asshole. They can even acknowledge that it is an asshole way to treat people, but there’s an underlying belief that it’s ok to be an asshole to lessers.

    It also makes the whole “they believe in things that hurt themselves” make more sense. They just believe that those higher than them in the hierarchy deserve better treatment. Maybe there’s an element of hoping to get there themselves one day, or maybe there’s an element of just feeling like they are inferior to those they agree are their betters.

    This is why they don’t really care if Trump is consistent or if he’ll help them directly. It’s also why his support is wavering, because if he’s not strong enough to win, then he isn’t really their better and is just fooling them, which also helps explain why the ones who have tried to take his life seem to be former followers because they can’t be neutral about him, it’s either gotta be love or hate.

    It makes sense that those who believe in it and those who don’t would be at odds with each other because the two beliefs are very incompatible. I’m not sure there is a resolution. It used to be “just don’t talk about politics, keep it private”, but that wasn’t sustainable as each side of the divide wanted to push for improvements under their belief system.


  • At least performance mods can improve efficiency, with the focus of getting more power from the motor to the pavement. If they are actual performance mods (as opposed to just making exhaust louder or adding a rear spoiler on a front wheel drive car), with exceptions of ones that do that by increasing fuel use.

    Though even with that one, driving style can matter. Anecdotal, but my car has a sports mode and an eco mode, as well as a fuel use indicator. I found that using sports mode and then having a range of speed I’d drive at (accelerate hard to top speed of the range, then reduce power so that it slows to the low end then accelerating again) was the most efficient way to drive it. If I tried the same in eco mode, the reduced power meant I spent more time doing the acceleration, and either of those was more fuel efficient than just maintaining one speed. Though it was a frustrating way to drive (both for me and I’m sure for anyone who ended up behind me). You couldn’t go on auto pilot doing it that way and had to pay constant attention to your speed.

    It’s kinda like the race to idle strategy for CPU/GPU efficiency. Use lots of power when it’s needed so that it can go back to using much less power.


  • Yeah, that was my experience. All those stories made me more curious about drugs than anything else even back in elementary school. Also, having people that used to have addiction problems come in to talk about them showed that you could get through them.

    Also didn’t really help that the one guy’s description of things going wrong for him was basically a bus ride with a hangover where he needed to puke out the window. And that he still did it after that, implying that there was something good about it.

    It wasn’t DARE exactly but some Canadian equivalent. I hadn’t really thought about drugs that much before that and didn’t shy away when I had an opportunity to try weed a few years later (thought it was interesting but not worth the money at the time).

    Also it only took taking psychedelics a few times to figure out the real problem authority has with them: they can help you break down your preconceived notions and see through the leaps of “logic” that the current system depends on.

    Like the first time I did mushrooms, I realized that authority figures (like doctors, police, etc) were just people like you or me and included people having bad days, people not focused on the current task, people who cheated their way through school or got to where they were via corruption, people who think they understand something better than they really do or base their knowledge on outdated information, trolls and bullies, as well as people trying their best in good faith.

    It was so obvious in hindsight, but I realized that up until then I had this implicit trust that even if there were times I didn’t fully agree with them, they were generally “different” in a “better” kind of way instead of a spectrum of the same kind of people you went to high school with, just with a selection process that is supposed to filter some out (with varying degrees of success).




  • This could be intended to settle a disagreement between management people who don’t see the trend of gamers finally getting fed up with the bullshit and others who don’t call the shots but do have a finger on the pulse (or even feel that way themselves and know they aren’t alone).

    I’d bet good money there’s plenty of developers and other gamers involved with a bunch of these companies watching decisions being made with horror.

    Actually I bet management only allowed this to be a poll because they did notice the trend of gamers getting fed up and previous cash cows running dry, but they needed a poll because they don’t want to believe that the thing they thought was the best way to fight piracy was hated by people who would otherwise be happy to spend money on it.

    I always keep thinking back to a piece of software that took weeks to get running at a job where we were development partners and then when I decided I wanted to use it with a personal project at home, I had a pirated copy running within hours. All the DRM stuff just made it into a pain for legit users while those using pirated copies never even saw that after it was cracked.

    And denuvo doesn’t even stop sucking once you get it running the first time, it will be wasting CPU cycles and memory bandwidth until the publisher decides it’s not worth paying the license fee for anymore.







  • I think legalizing weed didn’t make that much of a difference because the whole claim that buying random weed from a random dealer put money in cartel or terrorist pockets was a lie.

    Not that there weren’t any large weed organizations, they just weren’t murdering people at the scale the cartels are or doing it to fund violence.

    They’d also rely a lot on temporary workers since trimming was really the only labour intensive step, and then it would be sent out into a distribution network that wasn’t so much an organization as it was a collection of independent or small scale distributors. Which in some locations might have been gangs, but I’d guess was mostly normal people looking to make some extra money.


  • Another one that I found gave a kinda similar feel is Dr Stone.

    Though instead of diving deep into fantasy mechanics, that one is based on real world physics (well, other than some characters having super-human levels of skill) and rebuilding a modern society from scratch.

    I find them similar due to their attention to detail and using their environment to build up their capabilities. The overall plot is very different and DinD has a bit more charm. Not that Dr Stone doesn’t have charm.

    If I could choose which one I want to see one more season of right now, I’d pick DinD. If I could choose which one gets seen through to the end, I’d pick Dr Stone.