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Cake day: June 11th, 2023

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  • Just for another angle on the problem: baseload generation (nuclear) is most efficient at its highest possible output, but it has to maintain that output 24/7. It can’t ramp up and down fast enough to match the demand curve, and it can’t be ramped up above the minimum overnight demand.

    To increase its efficiency, utilities push large scale consumers like steel mills and aluminum smelters to overnight shifts. This artificially increases the overnight demand, allowing the baseload generators to ramp up their relatively efficient production. This reduces the need for less-efficient peaker plants during the day.

    That overnight demand can’t be met with solar, and wind generation tends to fall overnight as well.

    What nuclear can do is help level out seasonal variation, between the short days of winter and long days of summer. If you want to contemplate a truly pie-in-the-sky scenario, there are provisions for tying large ships, (like aircraft carriers and hospital ships) to shore power, and backfeeding the local grid to support disaster relief efforts.

    Imagine a fleet of nuclear generation ships, sailing to northern-hemisphere ports from November to April, and to southern-hemisphere ports from May to October.

    Pumped storage is also essential, but extraordinarily limited. We can probably run essential overnight loads on pumped storage, but it does not make sense to keep an overnight load on pumped-storage that can be shifted to solar/wind directly.

    We need to take a look at demand shaping rather than supply shaping. We need to shift load to times we can produce, rather than shift production to times of demand.



  • Rivalarrival@lemmy.todaytoTechnology@lemmy.worldWhat the hell Proton!
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    1 month ago

    They need to advertise a legitimate use for their service.

    If they don’t have a threat from public wifi or other security concerns to remedy, then the only purpose for their service is to bypass region limits and block infringement notices. They would be considered complicit in such infringement.

    That their service also hinders efforts to stop pirates needs to be an “unintended” and “unavoidable” side effect.


  • We have incentivized night time consumption. Base load generation (nuclear, coal) can’t ramp up and down fast enough to match the daily demand curve. They can’t produce more than the minimum overnight demand, but they have keep producing that around the clock. To minimize the need for “peaker” plants during the day, they want the overnight demand to be as high as possible.

    So they put steel mills, aluminum smelters, and other heavy industry on overnight shifts by offering them extraordinarily cheap power.

    That incentivized overnight load needs to be shifted to daytime, so it can be met with solar and wind. Moving forward, we need to minimize overnight demand.


  • Because it is not cost effective. Simple as that.

    The problem is that we don’t have enough demand shaping to shift night time loads to day time, and we don’t have enough storage to shift production to overnight. The result is that daytime generation is regularly going into negative rates (you have to pay to put power on the grid, which melts the returns on your investment into solar.

    As far as problems go, it’s a good one to have, as it will eventually result in lower prices for daytime generation.




  • We probably shouldn’t let people repair their own brake pads

    What kind of auth-dystopian nonsense is that?

    Repair an insulin pump the wrong way and it will absolutely kill you

    You’re just as dead if you can’t get that insulin pump repaired or replaced because the manufacturer won’t or can’t support it. When they go bankrupt because other customers have sued them into non-existence, you still own the device they manufactured, and you still need it repaired.

    Further, you presume the manufacturer can provide the best repairs. It is entirely possible and plausible that a competing engineer or programmer can improve upon the device, rendering it safer or providing superior operation. Car Mechanics can install a better braking system than the cheap, generic calipers and pads provided by the factory. Repair technicians can replace generic parts of medical devices allowing superior operation.




  • Rivalarrival@lemmy.todaytoTechnology@lemmy.world*Permanently Deleted*
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    2 months ago

    You may need gasoline, but you don’t need BP’s gasoline. By choosing to buy BP’s gasoline, you support everything BP has ever done. Don’t want to support them, buy different gasoline.

    FWIW, I’m not sure if I have a Xitter account or not. I did at one point. Definitely don’t remember a password, and I probably used a former email account that I can no longer access either, so no way of recovering it if it still exists. I have a severe lack of fucks to give about it.

    But, I am pro-pedantry, and your argument kinda sucked.


  • The “collapse” you’re talking about is a reduction in the diversity of the output, which is exactly what we should expect when we impart a bias toward obviously correct answers, and away from obviously incorrect answers.

    Further, that criticism is based on closed-loop feedback, where the LLM is training itself only on it’s own outputs.

    I’m talking about open-loop, where it is also evaluating the responses from the other party.

    Further, the studies whence such criticism comes are based primarily on image generation AIs, not LLMs. Image generation is highly subjective; there is no definitively “right” or “wrong” output, just whether it appeals to the specific observer. An image generator would need to tailor itself to that specific observer.

    LLM sessions deal with far more objective content.

    A functional definition of insanity is doing the same thing over and over and expecting different results. The inability to consider it’s previous interactions denies it the ability to learn from it’s previous behavior. The idea that AIs must not be allowed to train on their own data is functionally insane.


  • Also, with llms there is no “next time” it’s a completely static model.

    It’s only a completely static model if it is not allowed to use it’s own interactions as training data. If it is allowed to use the data acquired from those interactions, it stops being a static model.

    Kids do learn elementary arithmetic by rote memorization. Number theory doesn’t actually develop significantly until somewhere around 3rd to 5th grade, and even then, we don’t place a lot of value on it at that time. We are taught to memorize the multiplication table, for example, because the efficiency of simply knowing that table is far more computationally valuable than the ability to reproduce it at any given time. That rote memorization is mimicry: the child is simply spitting out a previously learned response.

    Remember: LLMs are currently toddlers. They are toddlers with excellent grammar, but they are toddlers.

    Remember also that simple mimicry is an incredibly powerful problem solving method.


  • I can see why you would think that, but to see how it actually goes with a human, look at the interaction between a parent and child, or a teacher and student.

    “Johnny, what’s 2+2?”

    “5?”

    “No, Johnny, try again.”

    “Oh, it’s 4.”

    Turning Johnny into an LLM,nThe next time someone asks, he might not remember 4, but he does remember that “5” consistently gets him a “that’s wrong” response. So does “3”.

    But the only way he knows 5 and 3 gets a negative reaction is by training on his own data, learning from his own mistakes.

    He becomes a better and better mimic, which gets him up to about a 5th grade level of intelligence instead of a toddler.