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Joined 7 months ago
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Cake day: December 1st, 2023

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  • The most important risk you face is if somehow mains voltage ends up contacting somewhere you get electrocuted and die.

    There are 2 purposes of an earth ground: First it can be used as a reference for certain signals, such as microphones. Second, it can be used to protect against turning yourself into a sparker.

    There is a clear separation between mains voltage and system voltages so it’s typically not going to be a problem, but if a little wire ends up contacting the power supply case it can become energized and things start to get really bad.

    Most of the electrical code where I live focuses on grounding as “Bonding”, which is purely safety related for giving dangerous voltages a safe place to go.






  • I’ve been using a number of different tools which I interface to my nextcloud.

    My main nextcloud has a llm plugin which was really easy to install, you just install the plug-in, make sure that you are configured properly with python in your path, and then run an OCC command to download one of a few models.

    https://localai.io/

    I also hosted localAI, which was a little bit more involved, but the website did a decent enough job of explaining exactly all the things that you needed to do in order to get all the different types of AI model working. Besides LLMs, it also supports text to speech, speech to text, and image generation.

    Two things that are important: first, if you are server doesn’t have a pretty advanced video card then you’re going to be using the CPU exclusively for AI, and that’ll be pretty slow. Second, I found it very quickly that the amount of RAM you have is critical. My main server is a core i5 4th gen, and so I put AI software on another one of my servers which is a core i5 7th gen. You would think that the latter would work a lot better, but it had half the ram, and it basically wasn’t even able to get started.

    Besides hosting ai, if you have a desktop computer or gaming laptop you can run local AI models. There’s a fantastic piece of software called Faraday that works pretty well on my laptop. You can get more and more sophisticated models depending on how much memory you have.

    https://youtu.be/aLy_vVLUHZk

    Krita has AI dal-e support for image generation available as a plug-in. I haven’t used it yet because I just got it started downloading last night before I went to bed, but the installation process has defined in the video seems accurate and was extremely easy and mostly automated.

    https://youtu.be/AU8NDSBIS1U









  • You might be surprised, on many fronts.

    Empathy for others who are not exactly like you is actually considered a virtue when you’re not in the little bubble that is reddit’s toxic, hateful political disease. Despite what you seem to think, empathy for someone who isn’t exactly like you is a key requirement of a healthy marriage.

    Man, I hope I live to see my grandchildren read my book, The Graysonian Ethic: Lessons for my unborn son (He’s born now, and he’s beautiful). I bet parts of it will seem archaic, since it’s directly addressing contemporary issues, but other parts will likely be timeless. It’d be really interesting if I could see them come of age and we’d get to see what they thought of their grandparents. The world will likely be a much different place by then, and not in ways you think.


  • Interesting thing about gasoline engines, they become more and less efficient when the temperature drops.

    They become more efficient because the air being brought into the engine is denser and cooler which is better, but they become less efficient because rubber parts become stiffer, lubricant becomes harder to move, and overall everything is tougher to deal with.

    One result is that if you drive long ranges in -40C, your fuel economy is relatively similar to what it would be in warmer weather. You can blast the heat and your vehicle is toasty warm since it’s just moving waste heat around. I’ve done such drives many times since resources are not where people tend to be.

    As you approach -40 you’ll probably want to have your block heater plugged in overnight on a gasoline engine, but generally speaking you can get pretty cold and have the motor turn over just fine. I drove a diesel for a while in the far north and going back to a (really crappy) gas engine was surprising for how easy it was to just get up and go in really cold weather.



  • EV performance in -40C is something nobody talks about but I’m extremely interested in.

    There have been lots of videos of Teslas leaving a heated garage then flying around a snowy track in Norway, but that’s much different than getting in a car that’s soaked in the cold all night, driving it to work, then driving home after it sits all day. Or even better, taking that same cold soaked car and driving to the next city 13 hours away with only one or two places to stop along the way.



  • It’s an easy thing to just assume people are stupid. It makes the world nice and simple and if only people would stop being stupid and start being smart (smart like you, obviously!) All the problems of the world would be solved.

    For a lot of people, reality isn’t so simple. The common man is already struggling. Throughout history, the age people get married and have kids has been indicative of the stress civilizations are under, and many people aren’t having kids before they get too old to have kids because that’s the level of stress the common man is under. Global civilization is facing a demographic bomb as every continent except Africa is facing a massive reduction in population in coming decades because nobody is having kids because life is so hard.

    As a study in contrasts, just look at wages vs. rent while I’ve been an adult. Minimum wage went from 11/hr to 15/hr. Meanwhile, my first 2 bedroom apartment was 350/mo, and today you can’t get anything for less than 1200. A few years before I rented, there were decent houses available for $50,000 and today the average house price nationwide is $800,000. (Not the US, obviously)

    So when a bunch of the business leaders and politicians who magically seem to get richer every time something is done “for our own good” – politicians who make as much as a senior engineer on paper but all of whom seem to become fabulously wealthy regardless (huh wonder where all those extra millions came from) while the common man has suffered – get together to figure out new ways to squeeze the common man, is it really so stupid to be skeptical? “Don’t worry everyone, we’re going to make your life even harder but it’s all for your own good.”

    Having the summit in Dubai is fitting – a city of extreme inequality, paid for with oil money, built by slaves, ruled by kings.

    You can try to guilt and shame people into not caring about basic biological drives, but you actually can’t. Entire generations of people have been pushed so far that their family lines will end with them. It’s comfortable enough – like being in a pool of comfortably warm water right up to your neck that you can’t escape from, but when you can see people plotting to add more water to your pool the next step is you drown.

    In previous eras, common people being this stressed out led to the fall of the Roman empire, the French reign of terror, the end of the Romanov dynasty in Russia or the rise of Adolf Hitler in Germany. While you call people stupid for not listening to their leaders, historically speaking those same leaders will be lucky to keep their heads on their shoulders.