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Cake day: July 5th, 2023

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  • Hallucinations while half-asleep are a well known phenomenon, so it’s very possible.

    If you’re trying to know for certain, that’s harder. You’ll have to consider a lot of things. Not all of them are likely, so how much digging you do is dependent on how concerned you are.

    Do you live alone? I assume you do, or already asked the people you live with.

    Are all your exterior doors and windows locked? Is anything missing or out of place? I think you’d have already noticed if you’d been robbed, but this is easy stuff to rule out.

    Do you have functioning Carbon Monoxide detectors? Do you have sleep apnaea? CO can lead to memory loss, sleep apnaea can contribute to sleep paralysis.

    Have you seen your door open while half asleep before? If this is recurring, you can do things like place hairs in the door that will fall if it opens.

    Have you done a sleep study? This can help determine if your REM cycle is frequently disrupted and if you need something like a CPAP.







  • Subtitles are great for this, but also investing in actual speakers instead of a soundbar or the tv’s speakers.

    If the movie has multiple sound channels beyond left/right, then dialogue is usually one of those channels and can come from a specific speaker, making it less muddied than when mixed with other sounds.

    If the movie doesn’t have multiple channels, the speakers might still help a little just by being better quality.


  • Unfortunately this is a rather open ended question. We’re constantly discovering new things. The James Webb Space Telescope has only been fully functional for a short while but has already provided tons of new info.

    Generally knowledge like this is similar to starting with a really low res photo that gets progressively more high res with each decade.

    For example, the band of the Milky Way galaxy we can see in the sky was suggested to be made of stars itself in 5th Century BC by Democritus. In 964 AD, Abd al-Rahman al-Sufi recorded observations on the Andromeda Galaxy and Large Magellanic Cloud. 1610, Galileo confirms the Milky Way band is indeed made of stars. 1923, Edwin Hubble proves galaxies are “island” clusters of stars.

    We’ve also had to rely on Newtonian Physics to describe things for a long time, but then it started being noticed that while consistent for practical things on earth, they couldn’t accurately predict things on the scale of the universe. Einstein’s general theory of relativity helped explain most of this, but still has some gaps.

    Black holes were proven in the last century, but we got the first visual confirmation just a few years ago. Redshifting proving that galaxies are moving away from each other is also in the last century.

    So at this point we have measurements on the general chemical make up of the universe, its size, its rate of expansion, the formation of galaxies, and how old it is starting from a specific event.

    These measurements are ranges though, and those ranges get more narrow the better our instruments and the new info we get. It’s like guessing the number of jelly beans in a jar. Your first guesses can be way off because you have to eyeball, but then you’re allowed to measure the volume of the jar and the volume of a single jelly bean. You’ll be way closer than before. Then you’re allowed to measure the weight of that jelly bean and that jar. You’ll probably be a little closer. Then you’re given a variety of jelly beans to measure, so you get averages instead of basing everything on a jelly bean that might be an outlier.

    So, in a binary way we don’t have the exact right answer for a lot of the universe, but each new discovery trends toward us being more correct than we were before.






  • Zero divided by zero is undefined. In that it literally does not meet the definition of division (from a mathematical perspective.)

    This is a bit tricky because the reason that 0/0 is undefined is separate from why any other number divided by zero is undefined.

    If I divide 6 by 0, there’s no number I can multiply by zero to get back to 6. Since I can’t get back to the 6, this is undefined.

    If I divide 6 by 2, I get 3. And I can multiply 2 by 3 to get 6. Now it’s genuinely important that there is no other number I can multiply 2 by to get 6. There has to be a single unique result for both the division and the going back via multiplication.

    Now, if we assume 0/0 = 1, that is fine. And I can multiply 1 times 0 to get back to 0. Checks out so far. However, 1 isn’t unique in getting back to 0. If I try 5 x 0, I get 0. Which, by the rules of division should mean that 0/0 = 5. Which clearly it wouldn’t.

    So zero divided by zero is undefined because there is an infinite amount of numbers that would get me back to zero.


  • Omnificer@lemmy.worldtoStar Wars Memes@lemmy.worldHan is the man
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    9 months ago

    One time Anakin lost R2 in a space battle and insisted on a rescue mission. He was told no, because it’s a droid, and then Anakin had to explain that he never wipes R2’s memory banks and R2 has accumulated massive amounts of sensitive intel for the Republic military.

    What Anakin doesn’t mention is the alarming amount of info R2 has on the Jedi, Anakin and Padme’s personal life, Naboo, the Senate, and whatever Separatist data is in whatever systems R2 is hacking into that week.

    At that point, Leia giving R2 the Death Star plans is basically par for the course.


  • Yea, it’s always been weird to me that Batman alone is being judged for not using lethal force. If that were part of any consistent values, wouldn’t every person who has had chain of custody of Joker, or even proximity to him, be morally obligated to kill him?

    If random cop that has had Joker in handcuffs, or random doctor who has been treating Joker, or even every other super hero on the planet hasn’t extra judiciallly executed Joker, why should Batman bear the obligation to do so?