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Cake day: August 12th, 2023

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  • Turun@feddit.detoScience Memes@mander.xyzElsevier
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    8 days ago

    I don’t understand the “that’s no how PDFs work” criticism.

    Removing data from the original file is the whole point of the exercise! Of course unique tokens can be hidden in plain sight in images, letter spacing, etc. If we want to make sure to remove that we need to degrade the quality of the PDF so that this information is lost in said lossy conversion.




  • Interesting that there is a fine difference between humanitarian aid and humanitarian assistance. I doubt many journalist are this strict about their wording, but good to know nonetheless.

    Social welfare provides the exact same things (housing, food, medicine) but instead of some disaster zone somewhere it’s for disadvantaged citizens in your own country. Of course, the logistics are massively different, as well as the timeframe during which the services are provided. But it’s still basically the same thing: help other humans with fundamental necessities.

    So I would disagree with your claim that it “isn’t the same thing at all”. It differs in some details, but the central service and fundamental reasoning is the same.









  • Ich habe gelernt, das bei Lichtschutzfaktor 15 etwa 7 Prozent der Sonnenstrahlen an die Haut gelangen, bei 30 nur noch 3,5 Prozent und bei einem Lichtschutzfaktor von 60 wiederum nur noch die Hälfte. LSF 30 oder 50 macht in der Realität also keinen Unterschied mehr, das ist nur noch Marketing.

    Korrekt. Ander formuliert kann man auch sagen, dass Lichtschutzfaktor X bedeutet, dass jemand mit Sonnencreme X Mal so lange draußen sein muss um die gleiche Dosis UV Strahlung abzubekommen.
    Also 5 Minuten ohne Sonnencreme sind equivalent zu 5 Stunden mit Lichtschutzfaktor 60.



  • That is true for most current “self driving” systems, because they are all just glorified assist features. Tesla is misleading its customers massively with their advertisement, but on paper it’s very clear that the car will only assist in safe conditions, the driver needs to be able to react immediately at all times and therefore is also liable.

    However, Mercedes (I think it was them) have started to roll out a feather where they will actually take responsibility for any accidents that happen due to this system. For now it’s restricted to nice weather and a few select roads, but the progress is there!




  • Eh it’s not that great.

    One million Blackwell GPUs would suck down an astonishing 1.875 gigawatts of power. For context, a typical nuclear power plant only produces 1 gigawatt of power.

    Fossil fuel-burning plants, whether that’s natural gas, coal, or oil, produce even less. There’s no way to ramp up nuclear capacity in the time it will take to supply these millions of chips, so much, if not all, of that extra power demand is going to come from carbon-emitting sources.

    If you ignore the two fastest growing methods of power generation, which coincidentally are also carbon free, cheap and scalable, the future does indeed look bleak. But solar and wind do exist…

    The rest is purely a policy rant. Yes, if productivity increases we need some way of distributing the gains from said productivity increase fairly across the population. But jumping to the conclusion that, since this is a challenge to be solved, the increase in productivity is bad, is just stupid.