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My previous/alt account is yetAnotherUser@feddit.de which will be abandoned soon.

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Cake day: June 1st, 2024

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  • Why the fuck would anyone care about wasteful space colonization and the next million years when we aren’t even close to solving our current problems?

    Renewables are significantly cheaper than nuclear and will remain so for the foreseeable future. The “cheap nuclear energy” Germany got a few decades ago isn’t as cheap if you include the costs of managing the nuclear waste. By the way, Germany intends to find - not build - a long term nuclear waste storage construction site by 2070. Right now the “temporary” solution of dumping everything into caves is used.

    Once we start colonizing space - and only then - does it make sense to start discussing the viability of nuclear energy. That will be centuries off.




  • yetAnotherUserto196@lemmy.blahaj.zoneImperial rule
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    2 days ago

    Sure. Except if you allow those in power to define the meaning of demos, every single country that ever existed - including Nazi Germany - was democratic. As a result, the term democratic becomes tautological in that it is always true regardless of the system involved.

    So yes, your statement that China is a nation is true.




  • I don’t think that’s why kids hate it. Rather, teachers fail to explain the underlying motivations, the reasoning and the purpose which makes math feel like arbitrary decisions.

    I’d argue math is much more uncertain than other subjects. What’s the purpose of the endoplasmic reticulum in your cells? Just memorize the textbook. Find all X such that [statement] is true? You better have some creativity! Or a lot, depending on the problem.

    Some accompanying evidence for uncertainty: https://xkcd.com/2117/






  • yetAnotherUsertoScience Memes@mander.xyzanyway, i started blastin'
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    7 days ago

    I’ve found a proper approximation after some time and some searching.

    Since the binomial distribution has a very large n, we can use the central limit theorem and treat it as a normal distribution. The mean would be obviously 500 billion, the standard deviation is √(n * p * (1-p)) which results in 500,000.

    You still cannot plug that into WA unfortunately so we have to use a workaround.

    You would calculate it manually through:

    Φ(b) - Φ(a), with
    b = (510 billion - mean) / (standard deviation) = 20,000
    and
    a = (490 billion - mean) / (standard deviation) = -20,000
    and
    Φ(x) = 0.5 * (1 + erf(x/√2))
    

    erf(x) is the error function which has the neat property: erf(-x) = -erf(x)

    You could replace erf(x) with an integral but this would be illegible without LaTeX.

    Therefore:

    Φ(20,000) - Φ(-20,000)
    = 0.5 * [ erf(20,000/√2) - erf(-20,000/2) ]
    = erf(20,000/√2)
     erf(14,142)
    

    WolframAlpha will unfortunately not calculate this either.

    However, according to Wikipedia an approximation exists which shows that:

    1 - erf(x) ≈ [(1 - e^(-Ax))e^(-x²)] / (Bx√π)
    

    And apparently A = 1.98 and B = 1.135 give good approximations for all x≥0.

    After failing to get a proper approximation from WA again and having to calculate every part by itself, the result is very roughly around 1 - 10^(-86,857,234).

    So it is very safe to assume you will lose between 49% and 51% of your gut bacteria. For a more realistic 10 trillion you should replace a and b above with around ±63,200 but I don’t want to bother calculating the rest and having WolframAlpha tell me my intermediary steps are equal to zero.





  • The walls of the echo-chamber have been built up and reinforced for over a decade. No single election cycle will ever pierce through.

    These people are lost causes unless a massive culture shift happens. And it’s not looking like that will happen in the next decades. You, just like other countries, will have to deal with a growing strong block of far right, young men who will grow up to be far right seniors.

    The warning signs started being obvious with Gamergate but they were ignored. The only thing that can be done is preventing the growth of these echo-chambers but the damage is done. It’s just like how carbon capture will not solve climate change, only stopping emitting more as soon as possible.



  • Soweit ich nach 5 Minuten Wikipedialesen weiß, wird die Änderung gespeichert.

    Laut §13:

    (1) Sind Geschlechtsangabe und Vornamen einer Person nach § 2 geändert worden, so dürfen die bis zur Änderung eingetragene Geschlechtsangabe und die bis zur Änderung eingetragenen Vornamen ohne Zustimmung dieser Person nicht offenbart oder ausgeforscht werden. Satz 1 gilt nicht, wenn

    1. amtliche Register oder amtliche Informationssysteme personenbezogene Daten zu dieser Person enthalten und im Rahmen der jeweiligen Aufgabenerfüllung von öffentlichen Stellen die Verarbeitung von Daten nach Satz 1 nach anderen Rechtsvorschriften erforderlich ist,
    2. besondere Gründe des öffentlichen Interesses eine Offenbarung der Daten nach Satz 1 erfordern oder
    3. ein rechtliches Interesse an den Daten nach Satz 1 glaubhaft gemacht wird.

    Für mich liest sich das wie: “Wir speichern ALLES”, aber ich bin kein Anwalt.