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Gustephan

@ Gustephan @lemmy.world

Posts
1
Comments
118
Joined
3 yr. ago

  • Order of magnitude is a hell of a drug

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  • You sound like an involved and caring father. Rock on, dude

  • Order of magnitude is a hell of a drug

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  • Do said atomic instructions produce pi though, or some functional approximation of pi? I absolutely buy that approximate pi is O(1), but it still seems like a problem involving a true irrational number should be undecidable on any real turing machine

  • Order of magnitude is a hell of a drug

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  • Is it actually? I'll admit im pretty rusty on time complexity, but naively I'd think that pi being irrational would technically make even reading or writing it from memory an undecidable problem

  • Order of magnitude is a hell of a drug

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  • "is not like you do calculations by hand anyway"

    ... get off my lawn, whippersnapper.

  • Order of magnitude is a hell of a drug

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  • That's because your engineering ass needs things to be physical and sane. Physics is a field for the mentally unwell to sink further into insanity while incoherently scribbling greek letters on every available flat surface.

    On a more serious note, yeah you absolutely have to be careful about where you apply really ambitious simplifications like that. There are plenty of mathematical regimes where you can use natural units (this is the term to look up if your interest extends further) and simplify your reference frame by a hell of a lot though. Setting the speed of light to 1 is also a hell of a drug, and brother I've got an addiction

  • Order of magnitude is a hell of a drug

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  • You're a monster. I love it

  • Order of magnitude is a hell of a drug

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  • The real comment mvp. You deserve every positive vote my post got

  • Order of magnitude is a hell of a drug

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  • Somebody else already said it, but that's what the title is.

    Longform: a lot of calculations that happen in astro deal with distances so large so large that only order of magnitude changes actually meaningfully affect the end result. To connect to a more common topic, here's a joke.

    "Whats the difference between a million dollars and a billion dollars?"

    "About a billion dollars"

    This joke works for the same reason; 1 billion is so many orders of magnitude larger than 1 million that (1,000,000,000 - 1,000,000 = 1,000,000,000) is only incorrect by ~0.1%, even though substituting 0 for 1 million in that equation seems ridiculous on the face of it. Substituting 1 for pi has similarly minimal errors (tbh it usually matters waaaaaaaaay less than .1% error) in a lot of astro math

  • It's Father's Day in the United States. What is a memory of your father that left the greatest impact on your life?

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  • Realizing that my father was a coward killing goat herders from a billion dollar jet, not a hero like I thought growing up.

  • Dads who didn't want pets - a classic

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  • :) I am glad that brought you a smile. I'm sure Chizz would love to know he's still making people smile through stories about him. He was a real one

  • Dads who didn't want pets - a classic

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  • I used to have an old man cat that was like that. He wanted to sniff everything that came in the house; not super urgently but he was always interested. It got hard for him to walk eventually and my girlfriend would always poke fun at me for carrying him around and holding him up to each new thing so he could investigate. He seemed happy about it though, he never stopped being interested in investigating

  • It's not supposed to make sense...

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  • The most important thing I've ever been told about quantum is "shut up and calculate." Results don't seem physical? That's quantum. Results don't make sense? That's quantum. Shut up and calculate

  • Well whenever you notice something like that, a wizard did it

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  • Christian scientists on their way to tell you about how their evidence free belief in magic shouldn't affect how you view their ability to derive truth from evidence

  • Why do, relatively, so few of you set an avatar for your profile?

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  • Avatars are a psychological trick useful for building up sunk cost fallacy and making a user more likely to personally identify with a product. I don't have social media avatars for the same reason I don't have "nabisco" tattooed on my asscheek.

  • That crisp spring air (at 150mph)

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  • Huh. I always thought the big trucks would do better in the wind, and I've never questioned that assumption. TIL

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  • "Drugs" is a pretty wide net, and yeah most of them would make it more difficult. Someone who isn't me once told me that psychedelics make it a lot easier to follow really abstract thought, and that comes in handy when trying to imagine theoretical geometries our brains and other sensory equipment didn't evolve to comprehend

  • That crisp spring air (at 150mph)

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  • be me. Business trip to Texas fml

    get some shitty subcompact rental car

    try to drive to some state park on weekend

    the location? About 3 hours driving away

    the cell tower reception? KEKW

    the road? On a 20 foot raised ridge for some texan fucking reason

    the wind? 42069 mph, perpendicular to the road

    literally turning the steering wheel against the wind to maintain driving straight

    literally feel like I'm going to get blown off the road and die

    in Texas so actually do want to die

    wish I was in a big truck for the first time in my life

    after hours of white knuckle driving finally get there

    Amarillo texas, the biggest pile of shit I've ever seen in my life

    literally. Active mountain of cow shit being farmed and sold as fertilizer right next to the town

    Texas. Not even once.

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  • No no, I think there's a misunderstanding here. If you can accurately describe to me what an n-brane is or have ever used terms like "deformation in the local topology", I assume you've done SIGNIFICANTLY more psychedelics than most people. I've never had easier access to psychedelics in my life than when I spent most of my time near the math buildings at uni.

  • Vexed

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