• 3 Posts
  • 322 Comments
Joined 3 years ago
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Cake day: June 12th, 2023

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  • But in much of the EU, electricity is expensive.

    I had an EV for a while (tons of people have company cars in Belgium) and charging it at a fast charging station costs like 10% more per km than gas. A regular charging station is very slightly cheaper.

    Charging at home used to be cheaper, but now energy companies charge a fee for “peak energy usage” that is more than 15 minutes, so if you charge your car at 11kW at home once in a month, you will get an extra fee on your 250€/month energy bill of 50€.

    I am interested in that battery research though, because charge-cycle wise, only lithium iron phosphate subsection of EV battery chemistry would last even near that long. Lithium ion only lasts 500 cycles before degrading to 70% and LiPo is only 1000. My ID4 could do 420 km on a charge, assuming a LiPo composition, that is 420k kilometers, which is a quarter of what you say. That said, that is a pretty long lifetime for a car. Especially because all of the sensor systems would break down or be remotely disabled to force you to buy new ones long before then.



  • My father used opensuse all through the 2000s when they still delivered CDs, so I always saw them laying around. I tried out Linux my first year of university (mint back then) because my mediocre laptop would take an insane time to startup windows 7. Battery life was significantly worse though. Maybe a part because my father used it because of unresolved feelings after he died.







  • And for any of the people saying “he changed”.

    One of his most recent “philanthropic” ventures was to partner with Nestle (good start) to “modernize and increase yields” of the dairy industries in impoverished countries.

    The two organizations then sold modern (likely non-servicable) equipment and entrenched them in corporate supply chain systems geared towards export and making it much harder to trade locally (not sure how that part worked, but was in what I read).

    For a grand total of… 1% increased dairy yields.

    Then 3-4 years later they pulled out, leaving heavily indebted farmers without the corporate supply chains and delivery systems they were forced to switch to, and making it very difficult to switch back to the old ways of working, so they can’t sell nearly as much locally.

    Who do you think will buy up those farms when the farmers go bankrupt and have to sell ar rock bottom prices.







  • Hey, something I can maybe help with.

    Flatpak IDEs on the main system are not very useful for development. I got rid of mine entirely. I am developing firmware so it might be a bit different from your case, but what I did in have a single arch distrobox where I could install everything embedded-dev-related that had to work together (JLink, nordic tools, code-oss, etc…) on that. Then a few standalone debugging tools like STLink and Saelae logic2 could be installed to the home folder by default and Code could still find them from the distrobox (but they could be installed in the distrobox also). It doesn’t even need to have an init system, but I ran into a few problems like having to manually chmod usb devices to give STLink access. Udev rules are also hit or miss in /etc/udev/rules.d, e.g. the STM udev rules just don’t work, but nordic does.

    High storage consumption is likely negligible (or at least nitpicky) since storage is so cheap nowadays. Your SSD doesn’t care if it has 15GB or 20GB of system programs, especially when development codebases and SDKs, games, and media will likely make up 90% of space and almost never share libraries even on traditional systems.



  • What about the performance info is wrong, may I ask?

    Sodium ion has far higher lab-tested cycle count than standard lithium ion/LiPo (3000-6000 cycles vs 300-500, max 1000 cycles) though in reality since sodium iron batteries are a chemistry that has been around for a few years instead of decades, real world is only 1000-3000 for the first generation while lithium iron phosphate still beats it with 3000-5000 cycles real-world, though that lithium chemistry is significantly more expensive, but indeed relevant to grid storage.

    Sodium ion batteries also have a much broader temperature range (-40 to 80C vs -20 to 60C where lithium cells are often capped at 45C to prevent damage).

    Charging times: sodium ion can charge between 2C and 3C while lithium ion is recommended to charge <1C. There are a ton of methods to get around that, but those would likely also apply to sodium ion

    It falls apart a bit more on density, voltage range, and discharge speed.

    Sodium ion can also handle 8C discharge rates, but not up to 10C like lithium, due to their higher internal resistance.

    The voltage swing is way larger (4V->1.5V) which isn’t a huge “problem” per-se, but not convenient as all of the current BMS chips and inverters were made for the very low voltage swing of lithium, so you will need seperate ICs or only use 50% of the capacity.

    And of course the 30% less density or so.

    I don’t think any of those are deal breakers for grid storage or a lot of “general use” when it will be much cheaper as it gets adopted and scaled.

    Very true that it is not optimal for EVs, but there are already Chinese Sodium-Ion EVs that perform quite well outside of the reduced capacity


  • Pretty bad. The whole summer I was pretty depressed from job searching and at the same time trying to get as far as possible on a big renovation that I only ran like 1x per week max.

    Now I started a new job, but the weather was bad so I only got through the first week and a half of my fitness schedule goal then got violently ill. Now I haven’t run or lifted for another 3 weeks.

    Every time I start back up, I get sick immediately, right now my throat has had razor blades in it for 4.5 days such that all I can eat is soup.

    Now that I go to work when it is dark and come home when it is dark, there is even less motivation and I have to find my headlamp or it is just dangerous.


  • It is funny because electric motors have nearly unlimited* torque depending on the kind. If you have thick enough power cables and winding conductors, you can just keep pushing it harder to get more torque.

    It is like the thing they are very good at, besides sound levels, double or triple the efficiency, low/no maintenance, simpler with less parts, no emissions, etc…

    Literally the only good thing about combustion engines are their fuel source energy density.

    I think the problem is that motorheads see the enshittification of the auto industry as a whole and just say it’s because of electric motors because it happened right about the same time as EVs started coming out and try to push back on the wrong thing.


  • That only solves maybe one of the listen problems. Whatever instance you have, you still have to get and serve media to other viewers and instances. The only problem that this solves is potentially CSAM spam/moderation.

    Let’s say it was a cell phone, it could handle maybe 2 concurrent transcoding streams before stalling out and people running into buffer times (which makes them leave).

    If every person had their own tiny, low powered servers, then you could have max like 5 concurrent transcodes on any instance in all of peertube for old laptop or desktop computers. Assuming an average of people have a 100/30Mbps connection (which is true in much of the world outside of major cities, or even lower), then that would be absolutely maxing out at 10 concurrent viewers if everyone is running AV1 compatible clients (which is not the case) and more like 6 concurrent viewers per video at h.264. Those estimates are at low bitrates also, so low quality, absolutely no slowdown from your ISP, and absolutely no other general home or work-from-home use. In reality it would be closer to 3-6 concurrent viewers per instance (not even per video)

    Still not even counting storage which is massive for anyone that creates more than a couple videos per year.

    My point is just that it is an extremely difficult and costly problem that is not as simple as “more federation” like in text and image-based social media because of the nature of video, the internet, and viral video culture. Remember, federation replicates all viewed and subscribed content on the instance (so the home instance has to serve the data and both instances have to store it)