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TauZero

@ TauZero @mander.xyz

Posts
4
Comments
52
Joined
3 yr. ago

  • Anybody Who Thinks Orbital Data Centers are a Good Idea Is Suffering from AI Psychosis, Experts Argue

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  • The way I see it is they are doing inference, not transfiring bank account balances. I'd be curious to see some actual experimental data, but I'd expect LLMs to skip past bit flips same way you shrug and move on from spelling errors. At worst you can do your critical calculation in triplicate on your 6nm nodes (with redo upon dissensus) and reduce your bit error from 4/year (or 4000/year or whatever have you in orbit) to (4/year)3

  • What’s a cheap purchase that’s completely changed your life?

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  • Yes, the water perfectly removes everything and does not splash. I refused to believe it myself. TMI warning: for the first year in my disbelief I would test it personally, for science, by sticking a finger in for "first-hand" comparison. When using paper, no matter how much you wipe, afterwards, even if the finger looks clean, it still has a whiff of ass. Only a full shower after use would remove the whiff entirely. But after using the bidet, the finger looks clean and smells clean, so much so as if there isn't even a need to wash the finger afterwards (though of course I did anyway). In summary: paper = never fully clean, bidet = fully clean.

    I think the difference in our bidet experiences is the water pressure. Mine is plugged directly into the water supply, and I have good water pressure, so the pressurized stream coming out is tight and powerful like a water pik. It took some getting used to. But it's easy now and it scours everything. I fear a gabo-style bidet that pours instead of powerwashes (or a spraybottle like the one linked in this thread) would not be as thorough and might indeed require a follow-up wipe. But mine doesn't.

  • What’s a cheap purchase that’s completely changed your life?

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  • You'd think so! right? But instead it is the idea of smearing shit on your ass with your fingers and a piece of paper that now sounds uncomfortable to me. This is the "completely changed your life" element of it. I've been using paper for decades no problem, but now I hate pooping outside of home because there is no bidet there. Beware!

  • What’s a cheap purchase that’s completely changed your life?

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  • Bidet - don't need any fancy standalone appliance, just a $50 nozzle that goes under the toilet seat and plugs into the water hose. Haven't paid a penny for toilet paper in 6 years.

  • [troll science]: Unruh particle shower on a centrifuge

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  • physicists are quite confident only blackholes can Hawking radiate

    Good to know! I was starting to get worried :D

    you absolutely need a horizon to get radiation

    Does the particle need to travel all the way from the horizon to reach you? How long does that take? The horizon still exists on the centrifuge, if only for a moment, shifting slightly from one instant to the next. In principle, at any moment you could detach from the centrifuge and fire 10g rocket thrusters in a straight line instead. In that first instant there is no way to tell the difference between the two.

    I say this because in the linked paper, the "acceleration" experienced by the positrons was the bouncing off the atomic nuclei in the silicon crystal, which takes place over the space of a few angstroms, or at most within the 3.5mm size of the crystal, in the time given by the speed of 178GeV positrons (+Lorenz contraction). This instant was sufficient to claim Unruh effects were occurring.

  • [troll science]: Unruh particle shower on a centrifuge

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  • Another complication is that even if the centrifuge slows down as it gets heavier, you can recover most of that mechanical energy when you hop off the centrifuge with your now full jar. Then you can boost it back up almost up to full speed. So I'm not sure exactly at what point you input energy into the system to instantiate the particles. When they hit the belljar bottom transversely maybe? Is this some kind of Maxwell's Demon situation where you need to close the jar before the particles fall back out?

    Also good to mention Earth! Logically, if Hawking radiation works for black holes it seems as if it would also work for any star or planet! But I've never seen this mentioned anywhere.

  • [troll science]: Unruh particle shower on a centrifuge

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  • Oh for sure, science is never boring :D but compare the intense situation in the troll science pic to the displayable results from the actual experiment (fig. 1c):

    Tip: evidence for the Unruh effect you are looking for is this 2mm difference right here:

    The teal dashed line is the power spectrum predicted from theory including the Unruh effect, and violet dashed line is without it. The data points match the teal line better. But you can't even see that by eye from the noisy dots! You need to do chi-square statistics to even prove it. (The dots below 30GeV - outside the "accelerated thermality" region - are not included in the analysis because they are guaranteed to be incorrect, as the experiment wasn't sensitive in that range.) Boooring!

    What the authors of the paper glance over in a single sentence before moving on to better things is that they had to shoot a FRICKING POSITRON DEATH BEAM FROM THE MFKING LHC through a crystal target and watch the resulting Bremsstrahlung gamma rays that would melt your bones off to obtain these datapoints. Talk about intense!

  • [troll science]: Unruh particle shower on a centrifuge

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  • Like many other popular weird physics effects, it has been accepted non-controversially by scientists and then popularized for decades in fun thought experiments and pop-sci videos, all of which neglecting to mention that no actual experiments have yet been performed. This lack of grounding leads to spread of confusing statements like "the Unruh particles exist in the accelerated frame but not in the lab frame", which make no sense, for how can there be two separate realities that coexist? Luckily we now do have a first Unruh experiment from 2019 https://arxiv.org/abs/1903.00043v7 and the temperature did rise and reality did not split apart. So no longer hypothetical, just routine and boring.

  • Science Memes @mander.xyz
    TauZero @mander.xyz
    troll science

    : Unruh particle shower on a centrifuge

  • What things should I do in NYC next weekend?

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  • Brooklyn Bridge is fine. They moved the bicycle path down into the roadway, so there is twice as much pedestrian space now.

  • What is your personal threshold for being grossed out by owning an object that was once part of a living being, and why?

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  • was once part of a living being

    When you drink a glass of water, about a hundred molecules of that water come from the pee of Isaac Newton from the specific day the apple fell on his head. Generally, every single atom surrounding us has been part of some living being or other thousands of times. Only drink pristine water harvested from interstellar comets!

  • NSFW Deleted

    Permanently Deleted

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  • The numbers in the meme are off. One sperm is 750MB, or about 1 CD, so full human is 2 CDs. Or a couple 1.4MB floppies if you only store the diff from the reference genome.

  • Polish Train Maker Is Suing the Hackers Who Exposed Its Anti-Repair Tricks

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  • fraud

    Sabotage. Property made unusable. Passengers were literally stranded in the middle of a journey.

  • Polish Train Maker Is Suing the Hackers Who Exposed Its Anti-Repair Tricks

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  • It's worse. They are saying that the EU copyright law, as written, only allows decompiling/reverse engineering to "fix bugs". A bug fix would involve a software patch of some sorts. But the security researchers did not have time to write a patch yet, what they did is tell the customer "Yep, it's fucked. Your vendor put in a killswitch to make the trains brick themselves." So that does tell them where the problem is, but it is not a bona fide bug fix from the Bugfix region of France, and therefore illegal.

  • Polish Train Maker Is Suing the Hackers Who Exposed Its Anti-Repair Tricks

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  • Newag [train maker] claims that the Dragon Sector [whitehat hacker] team endangered passengers’ safety by modifying the software without proper experience. But Newag then turns right around and claims that Dragon Sector did not modify the software at all. They point out that EU law only allows reverse engineering of software in order to fix bugs. And if Dragon Sector did not actually modify the software, it cannot have fixed any bugs, in which case their reverse-engineering must be illegal.

  • Delta moves toward eliminating set prices in favor of AI that determines how much you personally will pay for a ticket

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  • There has never been a law that someone selling something must offer the same price to everyone. Outside of some government regulation, like banning discrimination based on a few specific protected groups under the 1964 Civil Rights Act, government-set energy prices on state-granted monopoly electrical grids, annual rent increase percentage caps, etc. merchants have always been free to set any price on any product or to any customer.

  • I just spent four months in hospital in the UK. How screwed (financially) would I be in the US?

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  • Ah! Guess my memories are a few years out of date, from before r***it still existed.

  • I just spent four months in hospital in the UK. How screwed (financially) would I be in the US?

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  • Good to know! Still have to watch out for that every service you receive is counted as "in-network". I've read horror stories where somebody with an emergency goes to a hospital that their insurance promises them is "in-network", then later receive a surprise bill because one of the doctors that attended them at that hospital was "out-of-network". Why was the doctor at that hospital then? It's just something they do apparently.

  • I just spent four months in hospital in the UK. How screwed (financially) would I be in the US?

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  • On the order of hundreds of thousands to over a million dollars without insurance, on order of $50k-$100k in copayments with insurance. Either way will wipe you out financially, effectively forcing you to go through medical bankruptcy and resetting any savings you have to $0. In addition, the equity in your house and car can also be seized, above some personal homestead exemption ($250k in New York for example, where the average house price is $2M, and $5k for vehicle). Not sure if they kick you out of the house immediately, or put a lien on it that comes due when you die/move out and house is sold. The only savings that are safe from bankruptcy are retirement savings in IRA and future social security payments.

  • Don’t call it ‘Alligator Alcatraz.’ Call it a concentration camp.

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  • but hopefully for the last time

    That's what they said last time. "Never again" etc.

  • Science Memes @mander.xyz
    TauZero @mander.xyz

    Jigsaw Trolley Problem

  • Science Memes @mander.xyz
    TauZero @mander.xyz

    Sleeping Beauty Trolley Problem

  • Science Memes @mander.xyz
    TauZero @mander.xyz

    The real double-slit quantum eraser they don't want you to know about!