skysight-inc/HackerNews huggingface dataset:
It’s not about Redis vs not Redis, it’s about working with data that does not serialize well or lend itself well to extremely high update velocity.

Things like: counters, news feeds, chat messages, etc

The cost of delivery for doing these things well with a LSM based DB or RDB might actually be higher than Redis. Meaning: you would need more CPUs/memory to deliver this functionality, at scale, than you would with Redis, because of all the overhead of the underlying DB engine.

But for 99% of places that aren’t FAANG, that is fine actually. Anything under like 10k QPS and you can do it in MySQL in the dumbest way possible and no one would ever notice.
To the OP, I say forget this advice. There's a headhunting company called Monster, arguably the worst possible name, especially for that business. Last time I checked they were doing fine. The truly worst thing is not being talked about.

Manus means hand in Latin, not a bad name at all for a tool that lends you a hand. Some people will recognize this, others not. They'll be fine, or if not, it won't be for that reason.
I version control them by duplicating sheets
Not specific to this, but if you can solve issue with progressive lenses, you have a big market. Progressive lens sucks. They simply do not work and causes too much strain and practically unusable for daily operations. What would be great if there's a digital way where the lens changes depending on your activity. Driving, then go to long vision. In front of laptop - change to reading glass etc. I will be your customer if you solve this
That's great but I'm reasonably confident that if the probe ends up sideways, at least half of the science instruments won't work anyway. And no guarantee on communications either.
Tesla car battery catches fire as crews demolish home damaged in prev blaz
"A two-story Montgomery County, Maryland home destroyed in a fire from November 2024 caught fire again Wednesday, this time due to a Tesla car battery found at the scene, according to a Montgomery County Fire and Rescue Service (MCFRS) official."
Banking on paying his way out of jail
Because it's not remote. This allows a computer with a Bluetooth adapter to debug and modify its own firmware. This is normal. The potential problem is the interface for this was not documented, and the commands are embedded in the HCI host-to-bluetooth-adapter protocol. Because it's undocumented, software developers on the host may not have considered this in their threat modeling. Firmware updates usually require kernel-level privileges, but HCI does not.
I think hell for me would be stuck in Academia when I retire.
> Did you ever test for yourself to see that Honey was not finding you the best coupon? You can test this too. There’s a reason the second video is taking so long.

No. I further did not examine the extension's codebase or followed back its entire revision history. I also do not have access to their infrastructure, particularly their database of coupon codes, and any server side code. I also did not read through the multiple class action lawsuit documents. Not only that, but I also did not perform deeper examination of all the evidence provided. This would include:

- I did not reproduce his tests

- I did not listen to the hours of podcasts mentioned

- I did not independently research his claims

- I did not reach out to merchants for comments

- I did not try to gain insider information

- etc.

Instead, as you noticed, I'm discussing the points published by MegaLag and others, under the assumption that they're true, which the OP didn't claim otherwise - they instead were not even familiar with what was published seemingly. So whether what was published or not is actually true is actually a separate concern from my perspective.
They say "backdoor might be possible via malicious firmware or rogue Bluetooth connections."

Malicious firmware is not a RCE. If you install a malicious firmware you can do all kinds of bad stuff without this undocumented behavior.

And "rogue Bluetooth connections" is entirely theoretical. That MIGHT be a RCE, but it is not one. More of a hypothesis.

The headline alludes to much more than they have actually demonstrated. I'll change my tune when they demo the exploit code.
I once made over $1 million developing a program to rescue a small financial services company from its unmanageable mess of Excel sheets.

While I was working on that, the company was busy trying to figure out which other companies the millions of unaccounted excess dollars in their fiduciary account belonged to.

Turns out the boom-got-it-done-in-5-minutes types don't always have a plan for making the big picture work, beyond their current 5-minute problem.
This article seems to be (intentionally?) confusing two different things.

It seems to suggest this is about preventing unpeeled bananas from browning (yellow becomes spots becomes brown). Because it starts "Many of us have been guilty of binning a mushy, overripe banana" and continues "designed to have a longer shelf life".

But the actual details are not that. It is merely:

> said to remain fresh and yellow for 12 hours after being peeled

Huh? First of all, I don't know if half-eaten bananas are a major problem with food waste. People usually eat a whole one. And who cares about the peel remaining yellow after it's peeled...? The flesh of a Cavendish banana is off-white, not yellow...

It also says:

> and is less susceptible to turning brown when bumped during harvesting and transportation.

Is that a thing? Bananas are usually hard and green during these phases. If they're damaged so much they turn brown while unripe, I don't think I still want to eat them...
One example of special treatment is Chrome giving *.google.com sites access to system metrics for the CPU, GPU, and RAM usage[0][1] through a default extension that isn't exposed to users.

[0]: https://xcancel.com/lcasdev/status/1810696257137959018

[1]: https://source.chromium.org/chromium/chromium/src/+/main:chr...
Manus = माणुस in Marathi which means Man
The inventor of the bug bounty.
> In theory, the attacker could then use the undocumented commands to scan, spoof, or otherwise attack any near by bluetooth devices.

So? Device is 0wned. Did you think Bluetooth chip is magic protection device for rest of the network?

How would you stop physical external actor? Do you have "No ESP32 permitted on this property" signs on windows?
This is basically just a roomba with trays on it, right?

Are they being unloaded by the customers? The article gives the impression that it's just carrying the trays and a human waiter is unloading, which seems like just a very expensive cart.
I think it’s more likely they’re saying it benefits everybody
There's a (very good) brewery with an (excellent) tap room in Milwaukee named Third Space Brewing, not such a terrible idea. https://thirdspacebrewing.com.

I've setup and worked there many afternoons when I've been in Wisconsin. The drinking culture is different in the upper Midwest though, it's not party thing (always) as much as a social activity. You're not expected to get drunk, think France and wine.
This is silly. I'm a big proponent of GLP-1s (and on one!) but we can and do see people on these reaching sarcopenic levels of lean body mass. The overwhelming majority of people on these drugs should absolutely be doing everything they can to preserve their muscle mass.

(The overwhelming majority of people losing weight in general should be doing everything they can to preserve their muscle mass.)

Having slightly larger quads/hamstrings/calves than the average person doesn't mean they have an optimal amount of muscle mass in their legs to begin with, much less on the rest of their body.

Leg presses are also an absolutely terrible exercise to measure strength and by proxy muscle mass. The angle reduces the weight - generally only 71% - and they are one of the most "cheated" exercises in existence, with people doing what could charitably be called half reps (and is often more like quarter reps.)
I don't know. If my doctor tells me I need to take a certain pill to get better when I am sick, I don't grapple with the lack of free will. I really don't want to take my chances by choosing medications myself. What would be the point of that? Especially in the hypothetical situation where the doctor is perfect, or nearly so.

This feels more like cope than anything. We are stuck in an imperfect situation and tell ourselves it's better this way.
The Mad Magazine Basic Computer Program
Show HN: Place to sale small SaaS project specifically
I just got this idea very recently.

The concept is very simple, it's a website for entreprenuer who has SaaS project that already made some money, probably couple hundreds a month. And want to sell it, or at least show it.
And for buyer who's probably want to start a SaaS but don't have the idea. Or not sure what to build. So they don't have to start from absolute zero. And start with idea that at least has some establishment instead.

I also did some research and see that most of SaaS selling website is for very very big business. And valuation is mind blowing. So I kinda position this project to be more of passing the baton instead of "aquisition" in traditional sense.

---

Here's the website https://microflip.app/ It currently work by forwarding email. I'll continue working on other functionality too.
I find this also works when you go to coffeeshops that have a lot of people working
I see this a lot in AliExpress
I don't believe in free will, so I don't believe anyone freely chooses to do anything. I think genetic and environmental luck determines everything in life.

I'm far more interested in improving our lot by altering the environment (e.g. by promoting memory-safe programming languages, or by pressuring corporations to not be abusive) than in appealing to notions like choice.

https://sunshowers.io/posts/there-is-no-free-will/
"I swear I gave some of the stolen money to republicans too. I just did it more privately."

Sad thing is this might actually work.
TL;DR: They reverse engineered the firmware and found HCI commands to do things like read/write memory, send packets, and set the MAC address.

Not really a backdoor. I don't know if they called it a backdoor (presentation is in Spanish), or if the journalists are calling it a backdoor to get more clicks.

You'd need to have arbitrary access to send HCI commands to the device to use these commands. That means you're already controlling the device and how it operates. This isn't something that gets remotely exploited over the wireless link. Any exploits would already have to have full control of the device, at which point being able to change the MAC address or send packets isn't really a surprise anyway.

Interesting research, but really groan-inducing to see it spun as a "backdoor". I don't know who's to blame for the wording, though. I'm guessing the journalists?

EDIT: For an analogy that might be more familiar, imagine if someone discovered that the Ethernet controller on a common IOT chip could change its MAC address or send arbitrary packets if the firmware told it to. This is the same thing, but with Bluetooth.
Yeah, the research is good. Software developers do not expect HCI to have this type of control. Because it's undocumented, it's not in their threat model and is unexpectedly available from userspace. "Backdoor" isn't wrong, but it is misleading. The threat here is persistence from context that wasn't expected to have this capability.
Papers that can't be reproduced sound like they're not very useful, either.

I know it's not as simple as that, and "useful" can simply mean "cited" (a sadly overrated metric). But surely it's easier to get hired if your work actually results in something somebody uses.
When Kafka is not the right Move
Pydantic V2: The Slowening
Look, this is a solved problem. When my dad was developing vaccine and maternal health programs in Bangladesh, he knew there would be no faster way to destroy a vaccine program than by linking it to advocacy in favor of the country’s hindu minority.

The norm against that must be reestablished. So the people who did things like apply different hiring standards to medical students based on race, or proposed triaging care based on race, must go. Not because of their ideology—you can be a communist in public health as long as you compartmentalize—but because they hurt their institutions’ ability to do the job. And the people who sat by while that happened—who didn’t speak up to defend institutional values over progressive ones—need to learn some harsh lessons so that doesn’t happen again. I like you personally and hope your kid is part of rebuilding our public health institutions into what they once were.
Mastery learning and one-on-one learning aren’t cost-efficient at scale.

For the same price as 'out of state' tuition at UC Berkeley, you could hire a $100/hour tutor for 1:1 sessions, 8 hours a week.
Back support exoskeleton can mitigate fatigue adaptations in a lifting task
The problem is it is bad. People aren't just losing a proportional amount of muscle to fat mass to keep a good ratio - rapid weight loss is more catabolic towards lean body mass than it is with slower weight loss.

And most obese people are below optimal levels of total lean body mass overall even before this - their leg muscles being larger than an untrained person of the same height and an average weight does not mean that their leg muscles are of optimal size, much less the rest of their body.

Sarcopenia is a real risk for any obese person who is rapidly losing weight and GLP-1s are no exception.
I don't know man, I'm busy learning how to use neovim.
Show HN: I built a free privacy-first file converter
Always felt the file converting tools online are too clunky or come with annoying ads so built this through vibe coding using Replit

Would love your feedback and any new feature suggestions
That's not an accurate interpretation. At best, they're saying that a device using an ESP32 radio could send arbitrary packets, change its MAC address, or read/write the memory and registers on the radio.

> “Buy this super cheap home automation product” turns into installing an APT in your network.

That doesn't make any sense. If you buy a device with a radio, it's reasonable to assume that a malicious firmware could send/receive arbitrary things. That doesn't mean they have control of your network.

EDIT: It's like if you plugged an ethernet IoT device into your network and then someone told you the Ethernet chip on the device was capable of sending arbitrary packets or changing its MAC address if the device chooses to do so.
The nice thing about crypto plays is that you know they won't get anywhere so you can safely ignore them. Its all going to collapse soon enough.
> But I guess the robot companies are making money.

This isn't the first time and won't be the last time the general public had to deal with things being worse, just so companies can make money. We can't have companies not making money. Good heavens!
LLMs. Also, leaving web browser tabs open. Also, playing games without having to close/unload either of those. Although probably 128GB would be more than plenty for all that, I still drool at the prospect of having more RAM than I know what to do with.
I'm sympathetic to the issue of services getting worse, it sucks, but

> If an API delivers very solid results one day and crap the next and I spent a lot of money, how does that work? There are many people on reddit/youtube speculating why claude sometimes responds like a brilliant coder and sometimes as if it had a full frontal lobotomy. I see this in Cursor too.

This seems like an incredible over-reach. There's no predatory behaviour here. You're free to cancel at any time.

It's an incredibly fast moving field, a frontier field in software. To say that, in order to charge for something, you are legally bound to never make mistakes and have regressions, is an incredibly hostile environment to work in. You'll stifle growth if people think experiments might come with lawsuits unless they're positive it leads to improvement.

If they decided they were going to lock everything to gpt-2 and refuse to pay back any people who bought yearly subscriptions, sure I would be agreeable to considering this a bait-and-switch hoodwink. But that is clearly not happening here.
This has my gears turning wondering what other ultrasonic “lubrication” applications might be possible. Potentially a whole world of industrial and mechanical improvements.
Everybody keeps keying in on NYC. I thinks better analogy is would you let your kid travel the world at their whims without you. Because that is the Internet. It is inherently international.
> Reading that couldn't be more clear, CT is the primary modality for stroke, worldwide.

Well yes, it's primary modality for stroke worldwide and it's leading modality in France, just like I've said before.

> You're a little confused. You're using "sensitivity" to mean sensitivity of detecting ischemic stroke. MRI is the obvious follow-up. When available, worldwide. But it doesn't guide emergency treatment.

I would appreciate if you stopped using condescending tone. It does not guide emergency treatment decisions because in most cases it is not performed in emergency settings. When it is performed in this setting it is guiding treatment and MRI is included in stroke guidelines for cases where clinical diagnosis is not clear (and these cases are not that rare). Why is it not widely adopted? Mostly logistic reasons (which can be overcome - like they were in France) and because TOF-MRA is generally worse than CTA. It has others positives apart from higher sensitivity though, e.g. you can use FLAIR/DWI mismatch in wake-up strokes which are VERY common (obviously perfusion serves generally same purpose).
Lasers are economical but not taking a tiny nip out of the plastic?
How to Monetize Fitness Programs
Tesla does not sell vehicles at their "dealerships." Tesla is 100% online orders, you are not able to place an order at their showrooms with the staff. The showrooms double as delivery centers for entire regions. 30 cars per hour across a 100 mile radius as the EV subsidy is expiring is not impossible. Tesla does not collect the subsidies, the owners do.

This is only "suspicious" because it's fake news.
I've said this already but I'll repeat: articles that are locked behind a paywall, they simply suck. They take away my intention of reading the article.
I just added a 256-bit SoA SIMD computation. Going to follow your advice and benchmark this against both plain rust, and CUDA. (f32)
Ask HN: Internal ML SDKs?
Hi,

I’m doing research for a project within my company to develop a framework to help MLEs develop models. It’ll handle things like fault tolerance, checkpointing, integration with internal service APIs, and should be mostly framework agnostic.

There is a lot of literature on the system design of ML training systems companies publish, but little about the SDK layer. Does anyone know of industry publications detailing this layer, preferably by larger companies?
> Papers that can't be reproduced sound like they're not very useful, either.

They’re not useful at all. Reproduction of results isn’t sexy, nobody does it. Almost feels like science is built on a web on funding trying to buy the desired results.
if you are interested in this robot, this is off the shelf product called BellaBot

fun fact Carrefour Poland decided to make it their mascot: https://en.m.wikipedia.org/wiki/Kerfu%C5%9B

they even sell this catface t-shirts and other wardrobe

the robot itself from technological point of view looks kind off like oversized robot vacuum, but looks interesting anyways
This is not fraud. Tesla does not sell vehicles at their "dealerships." Tesla is 100% online orders, you are not able to place an order at their showrooms with the staff. The showrooms double as delivery centers for entire regions. 30 cars per hour across a 100 mile radius as the EV subsidy is expiring is not thst hard to do. Tesla does not collect the subsidies, the owners do.

This is only "suspicious" because it's fake news.
Didn’t know the people behind the mp3 format were into tooling for metalworking. Guess it makes sense, it involves a practical application for use of sound, and they are a research institution.

I wonder if the metal can hear the difference if it’s not the full 192 kHz.
Indeed, and there are two fields where "when will the project be finished" is recognized as a logical fallacy: Software development, and warfare.
Sea sponges inspire super strong material for more durable buildings
#TeamSutro
That’s just terrorism. Even just vandalizing a Tesla car for political reasons is terrorism. And it continues a trend we saw with the normalization of violent rioting back in 2020.
The AA bill has an explicit provision for not allowing weakening of existing security measures if supplying a TCN. That's the major difference between Australia and the UK.
I think you are underestimating the long term potential of robots like this to fit into a fully automated workflow.

Imagine a tablet ordering system relaying to a fully automated cooking machine unloading into a fully automated tray carrier. These all exist, although automated cooking is mostly proof of concept for now.
Are you saying that none of the undocumented commands are capable of putting the device into a remotely exploitable state?

The fact that it might be necessary to execute these commands locally is separate from the effects of executing those commands and the potential implications for hardware in the wild.

A simple example would be a supply chain attack that leverages these commands to compromise what will soon be consumer hardware.
then don't
I made one and the free tier is generous enough that most people just stick to the free
(much to my despair)
^.^
No plausible attack described for a reason.
focus101 is totally the best one
and I'm not saying that because I built it
:D
This is not fraud. Tesla does not sell vehicles at their "dealerships." Tesla is 100% online orders, you are not able to place an order at their showrooms with the staff. The showrooms double as delivery centers for entire regions. 30 cars per hour across a 100 mile radius as the EV subsidy is expiring is not thst hard to do. Tesla does not collect the subsidies, the owners do.

The "fraud" narrative being pushed about this is because this is fake news.
Let me quote ‪Carl T. Bergstrom‬, evolutionary biologist and expert on research quality and misinformation:

"Is everyone huffing paint?"

"Crypto guy claims to have built an LLM-based tool to detect errors in research papers; funded using its own cryptocurrency; will let coin holders choose what papers to go after; it's unvetted and a total black box—and Nature reports it as if it's a new protein structure."

https://bsky.app/profile/carlbergstrom.com/post/3ljsyoju3s22...
I don't remember where, I think the reason 25% sticks in my mind is because I usually do 20% and tend not to think about it. I did stop going to restaurants because of it but I would still go to fast food / take outs and then they started requesting tips before they even made the food. The increased in cost on top of the tip felt like small scale extortion - what are you going to do to the food if I don't pay. So now I just cook at home and save a bunch of money and I wonder how many others are doing the same.
I was at the tail end of elitist education in the UK (79-82) and we complained about tutorials being two students at a time instead of one on one

When I did my undergrad, tutorials were usually 2:1, except during the first year. It sounds expensive, but consider:

- we were only studying two courses at a time, so we only had two tutorials per week

- there were only 8 weeks per term, so 24 weeks per year

- 2 x 24 is 48

- let's say the tutor needs to be paid $100 for the session and $100 for skimming the essays beforehand; that's $100 per student

- 48 x $100 is less than $5k

- in the US, even state schools charge much more than $5k per year
For me absolutely not so maybe try to discuss more with your optometrist .
The article assumes to know what Putin wants.