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Cake day: June 9th, 2023

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  • TauZero@mander.xyztoScience Memes@mander.xyzIrresistible
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    4 months ago

    For an object heavier than the Earth, 1g radius will be greater than the radius of Earth. For 56 Earth masses that’s sqrt(56) times bigger = 48000km.

    A 56 Earth mass black hole will take 5.5e55 years to evaporate according to this calculator. A 100kg black hole (more close to what Richard used to be) is much smaller than the nucleus of an atom and will evaporate in 0.05 nanoseconds.

    Curiously there was a paper recently that calculated that even if there was a small black hole in the center of the Sun, it would take millions of years for it to grow, because the aperture is so small not much can fit through, and the infalling gas heats up so much as to repel the rest, creating an internal hot bubble.


  • By some argument, section 103 of the DMCA (which is what grandparent post is referring to) does make it illegal to even talk about DRM circumvention methods.

    illegal to: (2) “manufacture, import, offer to the public, provide, or otherwise traffic in” a device, service or component which is primarily intended to circumvent “a technological measure that effectively controls access to a work,” and which either has limited commercially significant other uses or is marketed for the anti-circumvention purpose.

    If youtube implements an “access control measure” by splicing the ads with the video and disabling the fast-forward button during the ad, and you go on a forum and say “Oh yeah, you can write a script that detects the parts that are ads because the button is disabled, and force-fast-forwards through those”, some lawyer would argue that you have offered to the public a method to circumvent an access control measure, and therefore your speech is illegal. If you actually write the greasemonkey script and post it online, that would definitely be illegal.

    This is abhorrent to the types among us for whom “code IS free speech”, but this scenario is not just a hypothetical. DMCA has been controversial for a long time. Digg collapsed in part because of the user revolt over the admins deleting any post containing the leaked AACS decryption key, which is just a 32-digit number. Yet “speaking” the number alone, aloud, on an online platform (and nothing else!) was enough for MPAA to send cease and desist letters to Digg under DMCA, and Digg folded.



  • a standalone drive

    Another cool/scary feature of the BluRay spec is offline firmware updates (called BD+). Any disc can contain code that runs automatically and can patch the player firmware or execute arbitrary functions. So if you have an older hacked player and you insert a newer disc into it, the AACS Consortium has the ability to brick it. Or if you “own” an older disc but the Consortium starts to dislike it for some reason (maybe they discovered that the disc was printed by a pirate publisher, or maybe there was a retroactive licensing dispute), they can include code on every newly published disc that blacklists the old disc. Even with a standalone player that you never connect to the internet, the moment you insert any new disc into it, your old “problematic” disc will be unplayable. This has never yet happened with a previously-legal disc AFAIK, but it is possible within the spec. Every player manufacturer must obey the spec and implement the BD+ virtual machine in order to be allowed to read AACS content. And if you hack your player to ignore BD+ code, then the newer disc will not play because its content may be scrambled in a way that only the custom BD+ code included with it can unscramble.




  • Can’t access the article, but wasn’t China the one most vulnerable from the Malacca Strait being a chokepoint? As in, their trade towards Europe and fuel from the Middle East being potentially threatened? How does Thailand pitching to the US make sense then? How would a Thai bypass even increase security, since both routes are in the same area and can be equally blockaded? There aren’t any problems with throughput capacity at Malacca, unlike say at the Panama Canal. Maybe it will make the travel distance slightly shorter, but is there really any way it could ever be cost-effective to offload and reload ships for a few hundred kilometers savings?


  • Thank you for your detailed input!

    It’s not even a platonic ideal - it’s drawing a supply/demand curve and thinking you understand how prices work in a market economy.

    You got me 😁. I love drawing supply-and-demand curves. Seems pretty hopeless then if to even begin to understand how to vote “correctly” you need 5 years of game theory PhD. Hearing someone say “just trust me bro, the optimal strategy is that one” is not good enough. Voting was supposed to be for the masses…

    drop everything to just start suing states and protesting for voting rights

    I could get onboard with ranked-choice voting. My city used IRV for our latest mayoral primary election, and even though none of my ranked candidates won, I felt extremely satisfied that at least my voice was finally being heard. When a literal police-mayor got elected (winning primary by only 7000 votes), I had the comfort of full knowledge that this was not due to any spoiler effect on my part, but solely simply due to more people voting for him. If we’d campaign for ranked-choice voting in federal elections - presidential primaries and general - we can eliminate all the above hand-wringing. The Democratic party should be totally on board with this since they could finally get the Green protest vote.


  • So I am proposing that the Democratic party is acting irrationally and suboptimally, but you claim that the Democrats are acting most optimally, and it is the fringe left that is acting irrationally instead by refusing to accept a unfair split against all game theory guidance, causing all of us to eat shit (despite them making up only low single digits). Yet if the Democrats are so rational, how come they keep losing? Shouldn’t they have found an optimal strategy to get around the irrational ultimatum of the left? Yet here we are.


  • I want people to be able to report bugs without any trouble.

    Thank you for being aware! I’ve experienced this on github.com. I’ve tried to submit issues several times to open source projects, complete with proposed code to solve a bug, but github shadowbans my account 6 hours after creating it (because I use a VPN? a third-party email provider? do not provide a phone number? who knows). I can see the issue and pull request when logged in, but they only see a 404 on their project page even if I give them a direct link. I ended up sending them a screenshot of the issue page just to convince them this was even possible. Sad to hear gitlab does it even worse now by making phone mandatory.


  • the most a third party is going to do is shave off a few percentage points, resulting in the main party losing

    If the third party can force the main party to lose, then it holds ultimatum power and game theory rules apply. The main party irrationally keeps rejecting the ultimatum and as a result keeps losing. To execute the threat of the ultimatum even after the unfair split has already been offered is the paradox of game theory. You have to appear credible enough to carry out such a threat, but the only reliable way to appear credible is to actually follow through on such threats every time.

    The Democratic party keeps losing and shifting right because it acts irrationally and fails to execute optimal game theory strategy. It could have offered the left a fair split and we could have all had guaranteed single-payer medical care, food, and housing, but instead none of us will have women’s rights, and the immigrants and gays among us will be herded into cages.



  • I know traditionally the dream fantasy of book readers has been to own an expansive physical library, with shelf after shelf full of book spines, but I just could never get into it. I’m a data hoarder, not an object hoarder! All my books are digital, mandatory in plaintext DRM-free format, sorted and backed up. I find joy in the knowledge that everything I have ever read is instantly grep’able, ageless, and can fit in my pocket (on a thumbdrive) wherever I go.

    I do prefer to read on e-ink as well, because the device is lighter than any book, guaranteed to fit in my pocket, can hold multiple books, and gives me control over font size. The only downside is when the battery gets old it needs more frequent recharging. A paper book will not refuse to work for lack of power!