Is it that much harder than remembering that some emojis now map onto secondary meanings, like 🍆 meaning penis and 💀 meaning “I find this to be very funny”? Or even the primary meanings of emojis, where you’d totally understand what someone is saying when they type ✈️🇯🇵🍣🍜?

The difficulty comes from the sheer number of them, but human communication is full of things where meaning comes from non-alphabetical symbols.

Every radio band is subject to their own rules.

Wi-Fi and Bluetooth transmit on frequencies that are “license by rule,” where the FCC license to transmit is granted to everyone who follows the Part 15 rules about the technical details. So nobody needs a separate license to use wifi or Bluetooth, and the devices themselves are only subject to certain technical restrictions, like maximum transmit power and the like.

Ham radios transmit on bands that allow for a license for anyone who can pass the test and pay the fee.

Cell phones operate on frequencies and bands that have much stricter licensing rules, and the devices are certified to follow the technical rules under pretty much all circumstances. They go through much more thorough testing than the radios capable of transmitting on amateur bands or license by rule bands.

This operating system contains code known to the State of California to cause cancer or reproductive harm.

It’s not feasible for a mass market consumer product like Starlink.

Why not? That’s a service designed to serve millions of simultaneous users from nearly 10,000 satellites. These systems have to be designed to be at least somewhat resistant to unintentional interference, which means it is usually quite resistant to intentional jamming.

Any modern RF protocol is going to use multiple frequencies, timing slots, and physical locations in three dimensional space.

And so the reports out of Iran is that Starlink service is degraded in places but not fully blocked. It’s a cat and mouse game out there.

I’d think that there are practical limits to jamming. After all, jamming doesn’t just make radio impossible, it just makes the transmitter and receiver need to get closer together (so that their signal strength in that shorter distance is strong enough to overcome the jamming from further away). Most receivers filter out the frequencies they’re not looking for, so any jammer will need to actually be hitting that receiver with that specific frequency. And many modern antenna arrays rely on beamforming techniques less susceptible to unintentional interference or intentional jamming that is coming from a different direction than where it’s looking. Even less modern antennas can be heavily directional based on the physical design.

If you’re trying to jam a city block, with a 100m radius, of any and all frequencies that radios use, that’s gonna take some serious power. Which will require cooling equipment if you want to keep it on continuously.

If you’re trying to jam an entire city, though, that just might not be practical to hit literally every frequency that a satellite might be using.

I don’t know enough about the actual power and equipment requirements, but it seems like blocking satellite communications between satellites you don’t control and transceivers scattered throughout a large territory is more difficult than you’re making it sound.

Joke’s on him, I’m putting my website at 305.domain.tld.

While we’re at it, I never understood why the convention for domain name wasn’t left to right tld, domain, subdomain. Most significant on left is how we do almost everything else, including numbers and ISO 8601 dates.

Specifically, desktop RAM is slabs of silicon, placed into little packages, soldered onto circuit boards in DIMM form or similar, to be plugged into a motherboard slot for RAM.

The AI demand is for the silicon itself, using advanced packaging techniques to put them on the same package as the complex GPUs with very high bandwidth. So these same pieces of silicon are not even being put into DIMMs, so that if they fall out of use they’ll be pretty much intertwined with chips in form factors that a consumer can’t easily make use of.

There’s not really an easy way to bring that memory back into the consumer market, even after the AI bubble bursts.

More along the lines of a “pizza finder” service that scours different menus and shows the pizza options at a bunch of places, whether those places exclusively offer pizza, specialize in pizza with some other options, or just offer pizza as one of several options. It would be perfectly reasonable for such a service to only return results related to pizza, without any implicit suggestion that each place it returns only has pizza available.

It’s like the relationship between mathematics and accounting. Sure, almost everything accountants do involve math in some way, but it’s relatively simple math that is a tiny subset of what all of mathematics is about, and the actual study of math doesn’t really touch on the principles of accounting.

Computer science is a theoretical discipline that can be studied without computers. It’s about complexity theory and algorithms and data structures and the mathematical/logical foundations of computing. Actual practical programming work doesn’t really touch on that, although many people are aware of those concepts and might keep them in the back of their mind while coding.

People who get downvoted a lot end up with a ‘low reputation’ indicator next to their name. You’ll know it when you see it.

Upvotes in meme communities do not add to reputation.

I think any kind of reputation score should be community specific. There are users whose commenting style fits one community but not another, and their overall reputation should be understood in the context of which communities actually like them rather than some kind of global average.

Who’s in the middle of this Venn Diagram between “uses some kind of custom OS on their phone to where their camera app doesn’t automatically read QR codes” and “doesn’t know how to install or use software that can read QR codes”?

I don’t have a phone that can scan QR codes.

QR codes are a plain text encoding scheme. If you can screenshot it, you have access to FOSS software that can decode it, and you can paste that URL into your browser.

I’m not sure that would work. Admins need to manage their instance users, yes, but they also need to look out for the posts and comments in the communities hosted on their instance, and be one level of appeal above the mods of those communities. Including the ability to actually delete content hosted in those communities, or cached media on their own servers, in response to legal obligations.

They’re actually only about 48% accurate, meaning that they’re more often wrong than right and you are 2% more likely to guess the right answer.

Wait what are the Bayesian priors? Are we assuming that the baseline is 50% true and 50% false? And what is its error rate in false positives versus false negatives? Because all these matter for determining after the fact how much probability to assign the test being right or wrong.

Put another way, imagine a stupid device that just says “true” literally every time. If I hook that device up to a person who never lies, then that machine is 100% accurate! If I hook that same device to a person who only lies 5% of the time, it’s still 95% accurate.

So what do you mean by 48% accurate? That’s not enough information to do anything with.

Yeah, from what I remember of what Web 2.0 was, it was services that could be interactive in the browser window, without loading a whole new page each time the user submitted information through HTTP POST. “Ajax” was a hot buzzword among web/tech companies.

Flickr was mind blowing in that you could edit photo captions and titles without navigating away from the page. Gmail could refresh the inbox without reloading the sidebar. Google maps was impressive in that you could drag the map around and zoom within the window, while it fetched the graphical elements necessary on demand.

Or maybe web 2.0 included the ability to implement states in the stateless HTTP protocol. You could log into a page and it would only show you the new/unread items for you personally, rather than showing literally every visitor the exact same thing for the exact same URL.

Social networking became possible with Web 2.0 technologies, but I wouldn’t define Web 2.0 as inherently social. User interactions with a service was the core, and whether the service connected user to user through that service’s design was kinda beside the point.

Wouldn’t a louder room raise the noise floor, too, so that any quieter signal couldn’t be extracted from the noisy background?

If we were to put a microphone and recording device in that room, could any amount of audio processing be able to extract the sound of the small server out from the background noise of all the bigger servers? Because if not, then that’s not just a auditory processing problem, but a genuine example of destruction of information.

Do you have a source for AMD chips being especially energy efficient?

I remember reviews of the HX 370 commenting on that. Problem is that chip was produced on TSMC’s N4P node, which doesn’t have an Apple comparator (M2 was on N5P and M3 was on N3B). The Ryzen 7 7840U was N4, one year behind that. It just shows that AMD can’t get on a TSMC node even within a year or two of Apple.

Still, I haven’t seen anything really putting these chips through the paces and actually measuring real world energy usage while running a variety of benchmarks. And the fact that benchmarks themselves only correlate to specific ways that computers are used, aren’t necessarily supported on all hardware or OSes, and it’s hard to get a real comparison.

SoCs are inherently more energy efficient

I agree. But that’s a separate issue from instruction set, though. The AMD HX 370 is a SoC (well, technically, SiP as pieces are all packaged together but not actually printed on the same piece of silicon).

And in terms of actual chip architectures, as you allude, the design dictates how specific instructions are processed. That’s why the RISC versus CISC concepts are basically obsolete. These chip designers are making engineering choices on how much silicon area to devote to specific functions, based on their modeling of how that chip might be used: multi threading, different cores optimized for efficiency or power, speculative execution, various specialized tasks related to hardware accelerated video or cryptography or AI or whatever else, etc., and then deciding how that fits into the broader chip design.

Ultimately, I’d think that the main reason why something like x86 would die off is licensing reasons, not anything inherent to the instruction set architecture.

it’s kinda undeniable that this is where the market is going. It is far more energy efficient than an Intel or AMD x86 CPU and holds up just fine.

Is that actually true, when comparing node for node?

In the mobile and tablet space Apple’s A series chips have always been a generation ahead of Qualcomm’s Snapdragon chips in terms of performance per watt. Meanwhile, Samsung’s Exynos has always been behind even more. That’s obviously not an instruction set issue, since all 3 lines are on ARM.

Much of Apple’s advantage has been a willingness to pay for early runs on each new TSMC node, and a willingness to dedicate a lot of square millimeters of silicon to their gigantic chips.

But when comparing node for node, last I checked AMD’s lower power chips designed for laptop TDPs, have similar performance and power compared to the Apple chips on that same TSMC node.

Honestly, this is an easy way to share files with non-technical people in the outside world, too. Just open up a port for that very specific purpose, send the link to your friend, watch the one file get downloaded, and then close the port and turn off the http server.

It’s technically not very secure, so it’s a bad idea to leave that unattended, but you can always encrypt a zip file to send it and let that file level encryption kinda make up for lack of network level encryption. And as a one-off thing, you should close up your firewall/port forwarding when you’re done.