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Cake day: June 12th, 2023

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  • This isn’t really the same kind of bug. Those bugs made instructions emit the wrong answer, which is obviously really bad, and they’re really rare. The bugs in the article make instructions take different amounts of time depending on what else the CPU has done recently, which isn’t something anyone would notice except that by asking the kernel to do something and measuring the time to execute affected instructions, an attacker that only had usermode access could learn secrets that should only be available to the kernel.



  • AnyOldName3@lemmy.worldtoTechnology@lemmy.worldIs Matrix cooked?
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    29 days ago

    AGPL is a full-on FOSS licence with strong copyleft requirements, not a measly open-source licence like Apache, which could be pivoted to proprietary at a moment’s notice. We’re communicating through an AGPL-licensed system right now as it’s what Lemmy’s licensed as. If they were going for a corporate-friendly licence, AGPL is the last thing they’d choose as it forces you to share source code with even more people than the regular GPL does.




  • You don’t necessarily want to just ask for volunteers as that’s a great way to summon exactly the kind of people you don’t want to put in charge of online communities. The best way is usually to notice people who are already part of the community and consistently make positive contributions, then ask for their help. If none of those people want to, though, you’re stuck.





  • The Olympics have allowed trans women to compete against cis women since the 90s, and yet there’s never been a trans medalist. If there was a genuine advantage to being trans in sport, at least one country in the past three decades would have loaded their team with trans women and cleaned house. However, taking enough hormones to make a masculine body into a feminine one after it’s already grown means you’ve got way less testosterone than a cis woman, so that counters out any initial advantage. Claiming otherwise is misinformation. Spreading misinformation to the detriment of trans people is transphobic.


  • As someone else said, installing things outside of Program Files is generally only necessary if they were made for XP or older, and the developers didn’t test on Vista or newer or read the bit of the Windows documentation that said not to write to an application’s installation directory because it might not work on future versions that was there since the early nineties. Regular Oblivion works fine in Program Files (although it makes it more of a pain to mod) and the Remaster was obviously made post-Vista.

    All that said, none of this is relevant because you’ve got the Windows App version, which uses a completely different system and works in a partial sandbox so doesn’t interact with the rest of the computer like a traditional program would.





  • People fall off rooftops fitting solar panels, burn to death repairing wind turbines that they can’t climb down fast enough to escape, and dams burst and wash away towns. Renewable energy is much less killy than fossil fuels, but per megawatt hour, it’s comparable to nuclear, despite a few large incidents killing quite a lot of people each. At the moment, over their history, hydro is four times deadlier than nuclear, wind’s a little worse than nuclear, and solar’s a little better. Fission power is actually really safe.

    The article’s talking about fusion power, though. Fission reactions are dangerous because if you’ve got enough fuel to get a reaction at all, you’ve got enough fuel to get a bigger reaction than you want, so you have to control it carefully to avoid making it too hot, which would cause the steam in the reactor to burst out and carry chunks of partially-used fuel with it, which are very deadly. That problem doesn’t exist with fusion. It’s so hard to make the reaction happen in the first place that any problem just makes the reaction stop immediately. If you somehow blew a hole in the side of the reactor, you’d just get some very hot hydrogen and very hot helium, which would be harmless in a few minutes once they’d cooled down. It’s impossible for fusion power, once it’s working, not to be the safest way to generate energy in history because it inherently avoids the big problems with what is already one of the safest ways.


  • That’s misleading in the other direction, though, as PhysX is really two things, a regular boring CPU-side physics library (just like Havok, Jolt and Bullet), and the GPU-accelerated physics library which only does a few things, but does them faster. Most things that use PhysX just use the CPU-side part and won’t notice or care if the GPU changes. A few things use the GPU-accelerated part, but the overwhelming majority of those use it for optional extra features that only work on Nvidia cards, and instead of running the same effects on the CPU if there’s no Nvidia card available, they just skip them, so it’s not the end of the world to leave them disabled on the 5000-series.





  • Male to female A-to-A cables are pretty common (they’re just basic extensions) and totally legal under the spec provided they’re limited to a certain length or contain a powered repeater. It’s just the rare male-to-male (which my keyboard stupidly uses) and even rarer female-to-female that aren’t legal. There’s also the exception of USB-on-the-go cables with a micro-B end and a female A end for devices like smartphones that are capable of being host or connecting to a host, back before they switched to USB-C.