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Cake day: August 4th, 2023

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  • There’s another factor - days where thr earth is orbiting faster, eg on the closer side of the ellipse - are a different length midday to midday from when we are on the far side of the ellipse.

    You can convince yourself of this when you consider that the area of the arc we traverse each day is the same (Kepler’s law). On the short side of our eliptical orbit, since the orbital distance is shorter, the arc must have a larger angle that we travel. That means the amount a point on the earth rotates to have the sun come back directly overhead must be different in different parts of the year.

    This difference, summed day over day, results in a +/- 20 min movement of actual midday to 12pm. The ‘mean’ in Greenwich Mean Time refers to averaging this difference over the whole orbit.






  • modeler@lemmy.worldtolinuxmemes@lemmy.worldHow Times Change...
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    7 months ago

    Linux was not muscled like that in 1991 - it’s first, barebones kernel was released in September of that year.

    I remember installing Linux on a 90MHz 486 in the mid 90s and it barely ran X server with a simple window manager. And if the machine was turned off while Linux was running, you might not be able to boot again.

    Linux now, however, is unrecognizeably better.





  • I’m guessing that exactly the same LLM model is used (somehow) on both sides - using different models or different weights would not work at all.

    An LLM is (at core) an algorithm that takes a bunch of text as input and produces an output of a list of word/probabilities such that the sum of all probabilities adds to 1.0. You could place a wrapper on this that creates a list of words by probability. A specific word can be identified by the index in the list, i.e. first word, tenth word etc.

    (Technically the system uses ‘tokens’ which represent either whole words or parts of words, but that’s not important here).

    A document can be compressed by feeding in each word in turn, creating the list in the LLM, and searching for the new word in the list. If the LLM is good, the output will be a stream of small integers. If the LLM is a perfect predictor, the next word will always be the top of the list, i.e. a 1. A bad prediction will be a relatively large number in the thousands or millions.

    Streams of small numbers are very well (even optimally) compressed using extant technology.



  • Completely agree.

    People are tribal - they tend to conform to what the group thinks and does. We’re also primed with strong us vs. them tendencies, that is you want your team to win whatever happens.

    As you say, if you believe that (for example) your friends and neighbours think democrats are radical socialists out to destroy American life, it would be highly dangerous to vote democrat let alone be on team democrat.



  • Is UPF food with ultra high fibre bad?

    I don’t know.

    My thoughts are that your total daily intake is more important than considering any single food item. As such, having some UPF in your diet is ok. The problem becomes epidemiologically measurable when, like the UK and US, 60% of calories consumed by some demographics are from UPF food.

    And there are almost certainly multiple different things ‘wrong’ with UPF and so if you fix one problem, you may still be at risk from another. For example in your question, there are a lot of studies showing the importance of fibre in the diet, including those that add bran to whatever the person normally eats. So UPF with lots of fibre, all things equal, is likely less bad than UPF without.

    Is UPF with ultra high vitamin A bad?

    Fat soluble vitamins (A, D, E and K) are interesting in that they don’t show benefits above RDA, and in high doses cause a long list of nasty symptoms. In particular, vitamin A in excess is correlated with increased risk of multiple major diseases and even death.


  • Scientists only use terms like ultra processed food after defining them in their scientific papers. The problem here is that the media find it difficult to write a short article for the general audience if they have to define things scientifically.

    What specifically is bad about UPF foods is still being researched. A few leading ideas are:

    • Very little fibre
    • Starches are all immediately accessible to digestion and so blood glucose spikes much more than for the non-UPF equivalent
    • UPF foods are soft and dry (so weigh less) making it very easy to eat a lot very fast, so you eat too many calories.
    • Relatively high in salt and sugar
    • Use of emulsifiers. These may change your gut microbiota and also make your gut more leaky causing inflammation
    • Use of preservatives and artificial colours
    • Frequently have a lot of oil

    Low fibre, emulsifiers and preservatives, while lacking variety of phytochemicals found in fresh food is known to change your gut health. People on UPF diets tend to eat more and have higher blood glucose spikes leading to heart disease and diabetes.

    Altogether this is a recipe for a shorter, less healthy life





  • It seems you misunderstand the goal of goverment.

    This is your opinion of what you want governments to be, not what they actually are.

    What is the point of not researching and having bigger budget, if it can’t buy thing that did not get created?

    What a lot of negatives and hypotheticals. All solved by getting a return on investment and having that money to do more things with, including research.

    And then on goverment level there is no such thing as copyright or patent.

    I’d like to introduce you to the World Intellectual Property Organisation (WIPO) which is an intergovernmental organisation that does precisely what you say doesn’t exist.

    They STILL need to put in money to create their own product.

    Sure, but the cost to duplicate the product is tiny compared to researching, developing then creating a production run for it. And this fake normally severely impacts the profits for the inventor.

    But now we’re just repeating the same arguments.


  • You appear to want to completely burn down a system you don’t understand because of some examples of misuse. For example, as there are slumlords, should we make all property free? Or should we solve the underlying problem (of massive capital flows to the rich?)

    You also have no idea how to read and understand a patent. The way they are written is horrendously verbose and highly confusing, but so are medical research papers or legal case summaries, and for the similar reasons: these are highly technical documents that have to follow common law (i.e. a long history of legal decisions taken in IP disputes).

    The real problem in the US IMHO has been the constant defunding of the patent office that has allowed a large number of very poor patents to be filed. The problems you are screaming about largely go to that root cause.

    But don’t throw the baby out with the bath water - you have no idea how bad that would be for everybody but the mega corporations.