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Microsoft 365 Copilot – Arbitrary Data Exfiltration via Mermaid Diagrams

https://www.adamlogue.com/microsoft-365-copilot-arbitrary-data-exfiltration-via-mermaid-diagrams-...
67•gnabgib•2h ago•12 comments

Show HN: MyraOS – My 32-bit operating system in C and ASM (Hack Club project)

https://github.com/dvir-biton/MyraOS
92•dvirbt•4h ago•8 comments

Sandhill cranes have adopted a Canada gosling

https://www.smithsonianmag.com/science-nature/these-sandhill-cranes-have-adopted-a-canadian-gosli...
22•NaOH•4d ago•3 comments

Are-we-fast-yet implementations in Oberon, C++, C, Pascal, Micron and Luon

https://github.com/rochus-keller/Are-we-fast-yet
24•luismedel•2h ago•1 comments

A definition of AGI

https://arxiv.org/abs/2510.18212
134•pegasus•7h ago•207 comments

You already have a Git server

https://maurycyz.com/misc/easy_git/
387•chmaynard•14h ago•312 comments

ICE Will Use AI to Surveil Social Media

https://jacobin.com/2025/10/ice-zignal-surveillance-social-media
36•throwaway81523•48m ago•4 comments

NORAD’s Cheyenne Mountain Combat Center, c.1966

https://flashbak.com/norad-cheyenne-mountain-combat-center-478804/
83•zdw•5d ago•40 comments

Ken Thompson recalls Unix's rowdy, lock-picking origins

https://thenewstack.io/ken-thompson-recalls-unixs-rowdy-lock-picking-origins/
73•dxs•8h ago•2 comments

Poison, Poison Everywhere

https://loeber.substack.com/p/29-poison-poison-everywhere
90•dividendpayee•2h ago•35 comments

A bug that taught me more about PyTorch than years of using it

https://elanapearl.github.io/blog/2025/the-bug-that-taught-me-pytorch/
326•bblcla•3d ago•66 comments

Wren: A classy little scripting language

https://wren.io/
116•Lyngbakr•4d ago•33 comments

System.LongBool

https://docwiki.embarcadero.com/Libraries/Sydney/en/System.LongBool
33•surprisetalk•4d ago•25 comments

AI Mafia Network – An interactive visualization

https://dipakwani.com/ai-mafia/
68•dipakwani•2h ago•6 comments

Show HN: Helium Browser for Android with extensions support, based on Vanadium

https://github.com/jqssun/android-helium-browser
21•jqssun•2h ago•5 comments

Making the Electron Microscope

https://www.asimov.press/p/electron-microscope
58•mailyk•8h ago•6 comments

Asbestosis

https://diamondgeezer.blogspot.com/2025/10/asbestosis.html
213•zeristor•16h ago•157 comments

We Saved $500k per Year by Rolling Our Own "S3"

https://engineering.nanit.com/how-we-saved-500-000-per-year-by-rolling-our-own-s3-6caec1ee1143
19•mpweiher•4h ago•2 comments

Feed the bots

https://maurycyz.com/misc/the_cost_of_trash/
150•chmaynard•13h ago•105 comments

Alzheimer's disrupts circadian rhythms of plaque-clearing brain cells

https://medicine.washu.edu/news/alzheimers-disrupts-circadian-rhythms-of-plaque-clearing-brain-ce...
149•gmays•7h ago•27 comments

Eavesdropping on Internal Networks via Unencrypted Satellites

https://satcom.sysnet.ucsd.edu/
174•Bogdanp•6d ago•29 comments

Pico-Banana-400k

https://github.com/apple/pico-banana-400k
357•dvrp•23h ago•60 comments

Downloadable movie posters from the 40s, 50s, 60s, and 70s

https://hrc.contentdm.oclc.org/digital/collection/p15878coll84/search
408•bookofjoe•1w ago•80 comments

Researchers demonstrate centimetre-level positioning using smartwatches

https://www.otago.ac.nz/news/newsroom/researchers-demonstrate-centimetre-level-positioning-using-...
15•geox•1w ago•4 comments

Resource use matters, but material footprints are a poor way to measure it

https://ourworldindata.org/material-footprint-limitations
11•surprisetalk•11h ago•2 comments

Formal Reasoning [pdf]

https://cs.ru.nl/~freek/courses/fr-2025/public/fr.pdf
119•Thom2503•13h ago•27 comments

Validating your ideas on strangers (2017)

https://jeremyaboyd.com/post/validating-your-ideas-on-strangers
60•tacon•2d ago•31 comments

Why your social.org files can have millions of lines without performance issues

https://en.andros.dev/blog/4e12225f/why-your-socialorg-files-can-have-millions-of-lines-without-a...
79•andros•1d ago•8 comments

Nvidia DGX Spark: When benchmark numbers meet production reality

https://publish.obsidian.md/aixplore/Practical+Applications/dgx-lab-benchmarks-vs-reality-day-4
127•RyeCatcher•7h ago•83 comments

Advent of Code 2025: Number of puzzles reduce from 25 to 12 for the first time

https://adventofcode.com/2025/about#faq_num_days
410•vismit2000•17h ago•200 comments
Open in hackernews

Galaxy XR, the first Android XR headset

https://blog.google/products/android/samsung-galaxy-xr/
16•xnx•4d ago

Comments

xnx•4d ago
From https://www.samsung.com/us/xr/galaxy-xr/galaxy-xr/ :

"4K Micro-OLED display with 4,032 PPI and 109°(H) and 100°(V) Fields of View"

Wow. Did not expect higher ppi that Apple Vision Pro.

someNameIG•4d ago
Lower refresh though, 90Hz at max. Though the device is about hale the price of an Apple Vision Pro.
thepryz•4d ago
Vision Pro has been out for almost 2 years now, so I'm not surprised. It's also worth noting that the lenses and engineering decisions around the optics can have way more influence on perceived image quality than just the specs would imply. Here's just one discussion around the challenges and decisions made around optics: https://kguttag.com/2024/03/01/apple-vision-pros-optics-blur...

I'm actually more surprised that Apple's update to Vision Pro was just a CPU bump that failed to address the criticisms people had - namely weight, price, and content/lack of a killer app. The Vision Pro's M5 is roughly 4-7 times faster in Geek Bench than the Galaxy XR's Snapdragon XR2+ Gen 2 so it'll be interesting to see whether the Galaxy XR will be hindered in any way.

noir_lord•2h ago
Yeah I had a Quest 2 and now have a Quest 3 for gaming - while the Q3 got a very modest resolution bump, the optics changes where night and day better - pancake lenses where worth upgrading alone over fresnels, reduction in glare and the sweetspot been massive by comparison.
Neywiny•1h ago
I'm torn on the quest. I don't own any VR. The cost of a lot of these systems is much higher than the quests. However, I feel like I'd use it tethered to my PC a lot. Do you notice loss in quality for that? I haven't been able to find out if it's actually sending a high bit rate or even uncompressed video stream or what
noir_lord•1h ago
It supports h264/h265 at high bit rates via oculus link (their software), I only use mine for PCVR, never on device.

You can also if you are a bit technical (and given where we are I’m gonna assume you are) use virtual desktop, which is designed to work over high speed WiFi but you can reverse tether it with https://github.com/Genymobile/gnirehtet then you can do high bitrate AV1 (which it supports in 10bit) with much lower latency than even good Wi-Fi and much less jitter, it’s a little fiddly to set up but has been robust for me that way.

I can’t really see much difference between h264 via usb-c and reverse tether via AV1 though.

With an aftermarket charge while use cable you can run it indefinitely, on quiet weekends I’ve spent as much as 6-7 hours in a go in IL2, it’s quantitatively different to playing the same game on a monitor.

Be aware though it will crush GPU’s, I have a 7900XTX and if I crank the sliders in IL2 I have to be careful to keep 90fps.

You can tell that Meta doesn’t much care about PCVR side of their software though, it all works and it’s serviceable enough but it’s not their focus.

In terms of quality loss, not really, there is no direct mode in any case, it’s all encoded/decode but it’s hardware encoded PC end (all GPU’s that are powerful enough to handle it have had the hardware encoding for quite a few years) and the decoder on the Quest 3 is more than powerful enough to do it within the frame time limit.

RandomBacon•15m ago
Holy f... that's a lot of PPI.
Topfi•4d ago
As a former AVP owner, this seems much more suitable for what I personally tend to use these devices for, with the headstrap appearing far closer to my personal comfort preference (halo straps) and a lower weight due to reduced power and no superfluous outer display along lighter materials. I get that Apple included these as apparently they have/had the vision of establishing the AVP as a device which users may keep on when talking with others, but like with the Watch, I'd hope having seen how people use the device makes them change direction.

As there is still no support for MacOS apps like XCode on the AVP M5 and gaming is hardly viable currently without controllers, the performance advantage of the M5/M2 over the XR2 Gen2 isn't really a factor for me. Doesn't matter what the face computer can theoretically do if for many tasks I need to connect to my MBP anyways. As a display replacement, the Galaxy looks far more appealing because of this, though I'll wait for independent reviews on wireless latency, eye tracking, stability of AR "widgets" in space, etc. Also am interested, will Meta port their games (Beatsaber, mainly) to Android XR or will they continue trying to establish themselves as the platform owners. Remember a lot of talk about Meta Horizon being used by partners like Lenovo and Asus, has yet to materialize and have a hard time seeing these going for Meta over Google now that XR has arrived.

Also wish Samsung had distributed at least part of the battery into the back of their head strap. Prefer the Meta Pro style over external batteries any day, though get the size limitations. A small backup battery for hot swapping and added weight distribution would have been a decent compromise though in my eyes.

gpm•2h ago
The focus on maps and gemini is hilarious. The first is literally the anti-use case, it's used when you're on the move, not when you're sitting still with a headset strapped to your face. The latter is one of the few computer use cases that doesn't benefit at all from having a headset strapped to your face.

I want to see things that benefit from the headset. Sell me photogrammetry to build a 3d model of my home that I can redecorate. Sell me "work" tasks where I'm multitasking between multiple windows. Sell the entertainment value. Sell the remote 3d collaboration angle. Sell the games involving exercise angle. Sell the isolated environment on a flight. Sell using a computer comfortably lying down. Sell reclaiming office space. Literally anything but the two apps that are better suited for a phone.

ninkendo•2h ago
> Sell me photogrammetry to build a 3d model of my home that I can redecorate.

I’ve wanted this for so long, and every time I’ve looked, I’ve never been able to find something like this. It’s worth the cost of a rather expensive headset for that use case alone: let me see my house with different paint colors, layouts, decorations, furniture, etc… all real-life scale and available to see in AR. It would be so perfect if somebody could make it work.

aleksejs•2h ago
> The focus on maps and gemini is hilarious. The first is literally the anti-use case,

It reminded me of the Wii U Street View app and the interview with its developers (at https://iwataasks.nintendo.com/interviews/wiiu/wii-street-u/...). They were going for the same sort of a vibe, though it's unclear to me how many people actually ended up having that much fun with it.

dialup_sounds•38m ago
Maps looks like a swing at "library of real world immersive 3d content" that landed on "guy air-tapping his way through a slideshow of bridge pictures".
jerrythegerbil•2h ago
Buried in the article is the primary relevant bit that gives the product hope of success beyond other comparable products in my mind: WebXR.

Many incredible things are developed with a product once it hits market saturation, but it has to make it that far. The VCR saw its initial success for a reason, and these companies have danced around the elephant in the room under the guise of intentional vendor lock-in to apps stores for best functionality.

Good to see.

gnabgib•1h ago
Discussion (183 points, 217 comments) https://news.ycombinator.com/item?id=45671871 [this shouldn't have made the SCP]