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Joined 11 months ago
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Cake day: February 16th, 2024

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  • Dasus@lemmy.worldtoScience Memes@mander.xyzmoms rule
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    21 hours ago

    But see we already got the base unit of a second for time. But for generations, perhaps?

    One kilomother would’ve been the early modern human, roughly. Ten kilomothers ago homo sapiens was just coming into being. A hundred kilomothers ago homo erectus would’ve just been coming into existence. A megamother ago we would’ve been diverging into great apes.


  • Dasus@lemmy.worldtoScience Memes@mander.xyzmoms rule
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    21 hours ago

    You can probably propose a new SI-base unit of “a mother”, but what does it measure?

    “Metric” just essentially comes from “metering”. People confuse “metric” with “decimal”, which is sort of the point of the person I replied to. While metric time technically exists insofar as you just use seconds as the base unit, omit minutes and hours and just do SI-prefixes, the French did also try decimal time, but it was just horrible.

    So if “mother” was the base unit and it measured something, in this instance time, the advent of agriculture was roughly four hectomothers ago. Or 0.4 kilomothers, if you will.








  • Dude.

    First off, it’s purely a hypothetical model. You can plop in negative time to equations and have them make sense, this doesn’t mean that negative time is possible.

    However disregarding that. The abstract of the study:

    We study the internal dynamics of a hypothetical spaceship traveling on a close timelike curve in an axially symmetric Universe. We choose the curve so that the generator of evolution in proper time is the angular momentum. Using Wigner’s theorem, we prove that the energy levels internal to the spaceship must undergo spontaneous discretization. The level separation turns out to be finely tuned so that, after completing a roundtrip of the curve, all systems are back to their initial state. This implies, for example, that the memories of an observer inside the spaceship are necessarily erased by the end of the journey. More in general, if there is an increase in entropy, a Poincaré cycle will eventually reverse it by the end of the loop, forcing entropy to decrease back to its initial value. We show that such decrease in entropy is in agreement with the eigenstate thermalization hypothesis. The non-existence of time-travel paradoxes follows as a rigorous corollary of our analysis.

    So the study the article is based on concludes that time-travel paradoxes are impossible. Thus you can not kill your own grandfather because it’d create a paradox. What they’re saying is that you could be in a CTC (closed time-like curve) where in which time goes back and forth from your grandparents to you and back again, but the time going back would reduced entropy ie reverse things.

    So you couldn’t “go back” because that’d mean your entropy ie your arrow of time, was still pointing forwards and not backwards.

    This isn’t a case of some random Lemming against a professor saying otherwise. It’s Lemmings telling you you’ve bought into pop-science sensationalism.

    The article does actually communicate what I explained there, but really almost hides it with the language, so I’m not surprised your either didn’t read it, missed it, or didn’t internalise it:

    Circling back to a spry young grandfather courting your grandmother the first time, the time loop could make his untimely death reversible; your memory of why you ever wanted to murder him in the first place may be erasable. In other words, all bets are off in a closed loop where quantum physics smoothes out any intrusive entropy.

    Ie nothing here is breaking the Novikov self-consistency principle







  • And you know what this thing could do?

    It had FM radio and you had the capacity to record songs off the fking radio. In 2003. That was beyond crazy. I mean you can do that at home with a cassette player, but since this had a radio and recorder, it was basically one of those boomboxes people’s carried around in the 80’s. Functionally, if only because you had earphones and listened to it yourself.

    Although the quality would horrify the HiFi people, especially anyone under 30 or so. They weren’t mp3, more like AMR/ACR whatever have you. (A proprietary format called LSE).

    I vividly remember the sights and smells of walking and listening to Eminem - Lose Yourself on a very specific path I used to walk in the woods.

    Gods I miss being a kid.

    Edit to make it clear about the phone, it was essentially an improved 3310 (the classic unbreakable nokia) with a different case so it had qwerty and a few other improved features (like I think even WAP basically which was like a very crude mobile internet) and a few added games, like the 3330 (which was this improved version but in a standard Nokia 3310 case, with very minor alteration of a few mm)




  • I have like a huge pile of letters from some twat lawyers sending threatening letters about copyright.

    The sad thing is most people I asked say “I would pay”. This was like more than 10 years ago when I first got some of them.

    The Pirate Party in Finland tried informing people of them being just threats, but Finns are really complicit people and afraid of breaking any rules, so I’m sure these twat lawyers made thousand, tens, maybe even hundreds of thousands. With Finland’s tiny 5m population.

    https://holda.fi/kiristyskirje/

    Basically what happens is some company in Germany which owns the rights to some B-class show or just a porn film even, then they upload it to an open torrent site. Wait for people to download it (remember the didn’t give permission to download it), look at the IP’s, then send the respective country in EU a request for the ISP to get that IP owner’s information and then hire a local lawyer to send them a threatening letter; “you’ve illegally downloaded a porn movie, pay us 800€ or we’ll take you to court and you’ll have to pay tens of thousands.”

    And if that goes to someone married or someone who downloaded fetish porn or something, they’ll be even more likely to pay.

    I never replied or did jack shit. Nothing has happened.