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The universal weight subspace hypothesis

https://arxiv.org/abs/2512.05117
110•lukeplato•3h ago•38 comments

Kroger acknowledges that its bet on robotics went too far

https://www.grocerydive.com/news/kroger-ocado-close-automated-fulfillment-centers-robotics-grocer...
85•JumpCrisscross•3h ago•78 comments

Icons in Menus Everywhere – Send Help

https://blog.jim-nielsen.com/2025/icons-in-menus/
272•ArmageddonIt•7h ago•109 comments

Jepsen: NATS 2.12.1

https://jepsen.io/analyses/nats-2.12.1
293•aphyr•8h ago•106 comments

Horses: AI progress is steady. Human equivalence is sudden

https://andyljones.com/posts/horses.html
197•pbui•3h ago•119 comments

The Lost Machine Automats and Self-Service Cafeterias of NYC (2023)

https://www.untappedcities.com/automats-cafeterias-nyc/
33•walterbell•2h ago•15 comments

OSHW: Small tablet based on RK3568 and AMOLED screen

https://oshwhub.com/oglggc/rui-xin-wei-rk3568-si-ceng-jia-li-chuang-mian-fei-gong-yi
29•thenthenthen•5d ago•3 comments

Strong earthquake hits northern Japan, tsunami warning issued

https://www3.nhk.or.jp/nhkworld/en/news/20251209_02/
272•lattis•12h ago•135 comments

AMD GPU Debugger

https://thegeeko.me/blog/amd-gpu-debugging/
217•ibobev•11h ago•36 comments

Scientific and Technical Amateur Radio

https://destevez.net/
25•gballan•2h ago•2 comments

Let's put Tailscale on a jailbroken Kindle

https://tailscale.com/blog/tailscale-jailbroken-kindle
243•Quizzical4230•11h ago•57 comments

Latency Profiling in Python: From Code Bottlenecks to Observability

https://quant.engineering/latency-profiling-in-python.html
16•rundef•6d ago•2 comments

Hunting for North Korean Fiber Optic Cables

https://nkinternet.com/2025/12/08/hunting-for-north-korean-fiber-optic-cables/
226•Bezod•10h ago•58 comments

Microsoft increases Office 365 and Microsoft 365 license prices

https://office365itpros.com/2025/12/08/microsoft-365-pricing-increase/
277•taubek•13h ago•326 comments

IBM to acquire Confluent

https://www.confluent.io/blog/ibm-to-acquire-confluent/
352•abd12•13h ago•283 comments

Has the cost of building software dropped 90%?

https://martinalderson.com/posts/has-the-cost-of-software-just-dropped-90-percent/
185•martinald•8h ago•334 comments

Trials avoid high risk patients and underestimate drug harms

https://www.nber.org/papers/w34534
78•bikenaga•8h ago•31 comments

Show HN: Fanfa – Interactive and animated Mermaid diagrams

https://fanfa.dev/
71•bairess•4d ago•16 comments

Cassette tapes are making a comeback?

https://theconversation.com/cassette-tapes-are-making-a-comeback-yes-really-268108
47•devonnull•4d ago•57 comments

Microsoft Download Center Archive

https://legacyupdate.net/download-center/
130•luu•3d ago•15 comments

Paramount launches hostile bid for Warner Bros

https://www.cnbc.com/2025/12/08/paramount-skydance-hostile-bid-wbd-netflix.html
261•gniting•13h ago•249 comments

AI should only run as fast as we can catch up

https://higashi.blog/2025/12/07/ai-verification/
118•yuedongze•9h ago•114 comments

A series of tricks and techniques I learned doing tiny GLSL demos

https://blog.pkh.me/p/48-a-series-of-tricks-and-techniques-i-learned-doing-tiny-glsl-demos.html
146•ibobev•10h ago•16 comments

Launch HN: Nia (YC S25) – Give better context to coding agents

https://www.trynia.ai/
94•jellyotsiro•10h ago•68 comments

Deep dive on Nvidia circular funding

https://philippeoger.com/pages/deep-dive-into-nvidias-virtuous-cycle
282•jeanloolz•8h ago•159 comments

We collected 10k hours of neuro-language data in our basement

https://condu.it/thought/10k-hours
96•nee1r•10h ago•58 comments

Legion Health (YC S21) is hiring a founding engineer (SF, in-person)

1•the_danny_g•10h ago

Nova Programming Language

https://nova-lang.net
90•surprisetalk•12h ago•47 comments

No more O'Reilly subscriptions for me

https://zerokspot.com/weblog/2025/12/05/no-more-oreilly-subscriptions-for-me/
124•speckx•11h ago•114 comments

Intel 8086 Microcode Explorer

https://nand2mario.github.io/8086_microcode.html
20•todsacerdoti•4d ago•3 comments
Open in hackernews

Kroger acknowledges that its bet on robotics went too far

https://www.grocerydive.com/news/kroger-ocado-close-automated-fulfillment-centers-robotics-grocery-ecommerce/805931/
85•JumpCrisscross•3h ago

Comments

AndrewKemendo•3h ago
Notable that the reasons for failure to meet benchmarks was that the locations were too far away, and that they are moving to the “Micro-Fulfillment Center” approach that Amazon is doing at Whole Foods. This is exactly what everyone predicted when Amazon bought WF - turn it into a grocery FC.

That makes sense to me.

Feels like we’re going to have warehouse scale vending machines in cities, and delivery bots taking them from the warehouse-vending-machine to the customer.

recursive•3h ago
I like being able to see the thing I'm going to get and holding it in my hand.
aerostable_slug•3h ago
I like not going to the store more.

Because tips are important to the income of delivery shoppers, I find that I generally get good produce selections. It might be difficult to transition that particular incentive to robots, but the point is that delivery items don't have to suck.

The only thing I really still pick out by hand every time are beef briskets. Pork shoulders tend to be uniform enough that randomly picking a cryovac works out, but there's a good bit of variation in brisket that makes a difference with the final product, at least when the brisket is prepared with a smoker. YMMV

recursive•2h ago
Delivery shoppers wouldn't be able to pick out the good stuff if it's delivered by drone or whatever.
mlrtime•26m ago
>Because tips are important to the income of delivery shoppers, I find that I generally get good produce selections

Wait, you tip to get a good selection of produce to be delivered to you? This is very bizarre to me.

AlotOfReading•3h ago
The grocery industry relentlessly optimizes for implicit choices over expressed preferences. Nobody is asking for misters, colored lighting, skeumorphic veggie bins, and wide open sightlines in the produce aisle. Stores do it because customers buy more when they do. The same thing will happen to in-store shopping if consumer preferences swing ever swing that way instead.
acessoproibido•3h ago
I'll believe it when i see it
mosura•3h ago
Sounds like they just put them in the wrong places.

> Fenyo added that Kroger’s decision to locate the Ocado centers outside of cities turned out to be a key flaw.

> “Ultimately those were hard places to make this model work,” said Fenyo. “You didn’t have enough people ordering, and you had a fair amount of distance to drive to get the orders to them. And so ultimately, these large centers were just not processing enough orders to pay for all that technology investment you had to make.”

jlarocco•3h ago
But I think in the cities Kroger grocery stores serve as the fulfilment centers, so they don't need robotic ones.

There's probably still room for automation, but it might have to be different than warehouse automation.

michaelt•2h ago
It depends on your business model.

If a basket of groceries brought online costs $15 more than the in-store prices, then you can pick in-store profitably, very easy. That's the instacart model.

But if a basket of groceries brought online costs about the same as buying in-store? With the retailer bearing the costs of picking, packing and delivery instead of the customer?

Well then you need something more efficient than a store.

cudgy•2h ago
Even $15 more isn’t enough on account of delivery time, transpo costs, driver time, picking items, and bagging. Current model is for drivers to subsidize by being tricked into taking unprofitable orders.
mothballed•2h ago
From what I've seen, for grocery the model is they'll give you the least desirable or near expired stock that the walk-in customers won't grab. So they're basically saving spoilage. This happens so reliably I'm absolutely convinced this is how they 'pay' for it without raising prices.

I've also noticed this with hardware stores like Lowes. If I place a pickup order they more often than not will pawn off on me their broken, returned, or even used and damaged stock. Items like building wrap will have soil and rips on it, concrete mix will be spoiled from moisture, lumber will be all the most warped pieces (if you don't order a whole pallet, expect every last piece of fractional pallet will be knotted to hell, split, twisted, and badly warped), plumbing valves will be open package and leaky, etc etc. It's like clockwork, even if the stock sitting on the shelf doesn't have these problems. Due to this there are some stores I will never do a pickup/delivery order from.

michaelt•2h ago
If Kroger operates the same was as Ocado does in the UK, then the drivers are paid by the hour, with the company providing the van and fuel.

Agree a lot of modern delivery businesses involve "self-employed" drivers getting paid a pittance and using their own vehicle and fuel, though.

sct202•1h ago
Kroger placed one of the sites in Orlando to also service Tampa and Jacksonville when they have 0 regular stores in the entire state. They were trying to use it to expand into the area, but I never saw very much in terms of advertising or promotions to drive demand but it could have also been that the robots were so bad that they couldn't attempt to market and push volume.
Animats•12m ago
Using a retail store for fulfillment means orders are accepted for items that are out of stock. the ordering system doesn't have reliable inventory info. Then the customer gets a partial shipment. This is the curse of Safeway grocery ordering.
monero-xmr•17m ago
“Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway”

In the AI analogy, never underestimate the productivity of a human when dealing with a giant pile of groceries. You can throw all the AI and robots you can at something but sometimes a $20 an hour human picking from stacks of goods and produce simply destroys it in raw economics

liquidise•3h ago
Good news for blue collar workers, tough for investors. The bean-counting dream of LLM's and Robotics remains, but until ChatGPT is placing your order at Mcdonalds drive-thrus and Amazon is laying off warehouse associates en masse, i'd say that last 5% is still taking 95% of the time.
markbao•3h ago
McDonald’s is an interesting example because they’re increasingly replacing cashiers with kiosks. Robotics/LLMs seem to have diminishing returns compared to that in the order taking realm.
glitchc•3h ago
Sure, but not the kitchen staff, which is where the robotics dream is supposed to take you.
al_borland•2h ago
I watched a show over 20 years ago that showed a fully automated robotic kitchen at McDonalds. I can only assumed they have continued to evolved it and perfect it as the technology has improved. I think it’s simply a question of when it hits the tipping point on cost.

There may also be an issue with logistics when it comes to making sure the machines keep running if there is a problem. They can barely keep the ice cream machines running.

markbao•2h ago
True, that’s a good example of the commenter’s “last 5% is the 95%”
kulahan•2h ago
I hate those stupid things so much. They're really, as far as I can tell, just moving all labor to the kitchen and drive-thru, while considering the dining area an afterthought.

Maybe they're just following the trends their own numbers tell them are happening, but I don't think they trust robotics enough to put an area they truly care about under its purview just yet.

al_borland•2h ago
McDonald’s is also pushing their app pretty hard with lots of incentives.
gedy•2h ago
I don't know what they are thinking, the kiosks are not cheap to install or maintain, they are buggy, and they've put me off from going into McDs anymore. The In-N-Out nearby is cheaper, friendlier with plenty of employees working, (and better quality), so not sure what McD's end game is here.
markbao•2h ago
I don’t like them either. The UX is annoying and it’s way too large. The benefit is that I get to see more options than can fit on the screens and they have photos, but still in person just seems better.

But I’ve read they’re effective, apparently, in consistently upselling compared to a human, so I’m guessing that’s their play.

bcrosby95•2h ago
I love it when people invent things to force everyone perform self service and call it 'progress'.
rajamaka•1h ago
I usually see people preferring to use the self service in McDonalds or supermarkets when given the option of either, so the consumer must find some benefit to it.
mlrtime•29m ago
I like it, I order on my phone before I get to the place and just pick it up.

Any reason to like the old way is just nostalgia in my head.

SoftTalker•9m ago
Yeah the introduction of the kiosks is what tipped the scale and stopped me going to McDonalds. And I used to eat there a couple of times a week at least.
gilbetron•2h ago
Taco Bell by us has AI order taking and it is amazing. Quick, always has been getting it correct, and easy to understand. Granted, it's probably very abusable, but for someone just wanting to put in a quick order it is way better than a person.
bombcar•3h ago
I remember a glowing video about this thing (by Tom Scott maybe?) and being confused how it could ever compete with humans being paid slave wages.

Guess I was right.

gurumeditations•3h ago
Having FCs an hour away from your customers, packing groceries into a tiny truck with one or two employees per truck, the trucks alone would never pay for themselves let alone the FCs. This was obvious from the get go and it’s why Walmart has been the only one successfully doing grocery pickup and delivery for 6 years. Every store is an FC and they’re all within 20 minutes of their customers.
Havoc•3h ago
TIL Ocado is supposed to be an automation/robotics co.

I associate it more with delivery vans that seem to be in no particular hurry (unlike uber eats / DPD / UPS etc)

da02•3h ago
Here in the Houston areas, supermarkets like Kroger/Walmart/HEB/etc always have single floor buildings. Why can't they build multi-floor buildings for storage upstairs and retail walk-in sales on the ground floor? On the above ground floors, they can create an automated or semi-automated system for employees to gather up items for online/delivery orders.
tacker2000•3h ago
I would guess that having everything on one floor optimizes the unloading, restocking and logistics. Also construction is cheaper.
poguemahoney•3h ago
Good construction is not cheap and takes many quarters. Land outside the urban area is far too cheap and probably subsidized (directly or with free oversized infrastructure) because local government always wants jobs, even small numbers of shitty jobs.
AngryData•3h ago
Probably because you then need pillars throughout the entire building to support the second floor which you are loading down with a ton of weight. The average forklift weighs 3x or more the weight of the average car, and then adding racking and stock on top of that. Yeah if you completely redesign your storage system to not require forklifts you save weight there, but you end up adding the weight back with all the heavy duty track systems and extra heavy duty racks that are required to eliminate the forklifts. Plus there is liability of having that weight up top, a rack failure on a second floor could take down half the building.

It is possible, but you end up spending 10x as much on the building.

alphabettsy•48m ago
Then put the warehouse on the first floor and put the store on top.

Lots of big cities have grocery stores with parking garages under them, doesn’t seem much different.

SoftTalker•13m ago
Inner city high rise construction is entirely different from tip-up and bolt together single-story box stores in the suburbs.
bena•3h ago
The vast majority of the inventory is already on the sales floor.

Also, the backstock is minimal. Stores are designed for turnaround.

DrewADesign•2h ago
Right. Not selling things fast enough is a bigger problem than not having enough storage for unsold stock.
taeric•1h ago
Glad someone made this point. I'm curious how long people think most items in a grocery store last? Just consider the trucks you see stocking them on a daily basis. Typically it is bread and other high flow consumables, no?
mlrtime•31m ago
I thought about this a lot with parking spaces, nobody like big, open, tree-less parking lots. Why not just build them up adjacent to the grocery store.

The answer is $. It costs too much and land is cheaper than building up (In most places).

omgJustTest•3h ago
3 CFCs (robotics centers) closed, 5 continuing operating [1]. Initial commitment was 20 & Kroger is paying 350m$ to compensate the partner.

I don't know what success looks like but it's probably fair to say they were over-extended by roughly 30-40%.

https://chainstoreage.com/kroger-pay-350-million-automation-...

websiteapi•3h ago
this kind of stuff is still probably a few orders of magnitude too expensive per unit cost.

I'm also skeptical it'll ever work in America due to the general lack of density.

trebligdivad•3h ago
I sometime use Ocado in the UK, and it's 'OK' but it's certainly not at the cheap end of the market. I more often use a traditional supermarkets home delivery service where it's manually picked; those supermarkets have the advantage of having very little infrastructure overhead in the picking - they mostly use their existing stores and pick at quiet times/over night. Ocado has to run entire warehouses just for this task. Ocado can only work with packed goods - not weighed vegetables for example - which the hand pickers in store can do, albeit whether they do it well is down to luck and the mood of the picker.
markus_zhang•3h ago
I had a wonderful retro futuristic dream about an automated Costco warehouse a few weeks ago. It was one of the less weird dreams so I still remember it clearly.

Basically, each section is like a closed areas with some windows. Customers order at the computers by the windows and flash their membership cards. Robots glide left and right to move 10 samples to the customer, in an arm with rotating clips. Customers can press a button to rotate the samples, observe them, and place an order by pressing a button. Samples not chosen are temporarily stocked at the window as a “stack”.

In each closed section, there are humans who monitors and maintains the robots, and occasionally fetch samples when robots stop working (hopefully it too often, you know those 9s).

At the exit, a human worker assembles the packages and hand them to the customers with a smile. Customers have a last chance to return unwanted items.

Why was it a retro futuristic dream? Because the customers have the option to go into a bakery to enjoy a cup of coffee/tea, some cake and socialize with fellow customers. All of them looked like the men and women from advertisement from Fallout 4.

I’d like to shop or even help build one of these.

cmckn•2h ago
Sounds like a lot of waiting around, versus just browsing the aisles. Maybe today’s consumers need to rediscover cash-and-carry, though.
markus_zhang•2h ago
In the dream customers just walk around and make orders. It’s actually old style I think, but with robots. Yeah it’s a bit like cash and carry, but customers didn’t move into the sections. They just get to browse the samples robots carried to them.

TBH, now that I think about it, the dream was way more vague than what I described in the reply. My brain probably reasoned about the idea subconsciously.

whynotmaybe•2h ago
Something like this?

https://www.untappedcities.com/automats-cafeterias-nyc/

markus_zhang•2h ago
Yeah, something like this.

The only exception in warehouse was the cafeteria. I guess my brain wanted to make something retro futuristic so it made the cafeteria “retro” — manned by humans and cooked by humans too. There were even balloons inside now that I recall…

seanmcdirmid•2h ago
Sounds like the old general store model, you didn’t browse yourself, the shop keep would bring out what you wanted, it was always behind the counter. I experienced this in China when I started visiting in 1999/early 2000s, it’s mostly not like that anymore though. You still have department stores where you need to buy things first before touching them, though.
Scoundreller•2h ago
Had a large-format (for its time) chain store in Canada like that until 1996: https://www.tvo.org/article/what-happened-to-consumers-distr...

Basically a catalogue store without shipping to your door.

seanmcdirmid•1h ago
Oh Service Merchandise was a thing in the USA also, where I was living at in Mississippi at least. It was basically catalog focused store with a showroom.

IKEA is kind of like that also, but you have to get everything yourself after picking it out upstairs. And Sears might have been like this at some point before I was born.

markus_zhang•43m ago
Reading the history of Consumers (thanks, I never knew this existed):

>In the 1990s, Consumers Distributing struggled to compete with Zellers and then Walmart Canada. Consumers Distributing sought bankruptcy protection in 1996.

And Zellers went under just a few years ago...

ch4s3•2h ago
You'll obviously buy fewer things that way, and I can't see that making business sense.
markus_zhang•33m ago
Yeah, that could be true. I'm not sure how many people are similar to me, who are allergic to "window shopping" and just want to buy, pay and exit. My Costco session is less than 30 minutes (from parking to back to car) in average.

I do research price, though, so if they show a big DISCOUNT sign and is more or less honest with it, I'll probably grab some, too.

CPLX•1h ago
You’ve just described B&H in New York City.
vkou•28m ago
You've reinvented the Soviet grocery store, but with robots instead of people and with a $7 cup of coffee.
markus_zhang•24m ago
I remember those stores as I came from a similar background. One vital difference is that they all have workers who have a straight face and don’t give it a fuck about customer service.

Then in the 90s they were all washed away by the new ones.

Animats•16m ago
What you've re-invented is Keydoozle, from 1937.[1] This was the first automated grocery store. Three stores were opened, but there were enough mechanical problems that it didn't work well.

[1] https://rarehistoricalphotos.com/keedoozle-automated-store-p...

Frye•3h ago
Also worth mentioning Kroger just lost a multi million dollar lawsuit in Florida after one of their delivery trucks hit a cyclist. I wonder if this has anything to do with it as well.
rolandog•2h ago
"Something, something, ... omelettes ... few eggs" -- mouthpiece from corporation that lobbies to cut regulations
Dylan16807•2h ago
I can't find the story, but if it's a human-driven truck there's nothing special about a vehicle hitting someone. Everyone that drives a vehicle is accepting that risk. It's not heartless to have vehicles. And I don't even know what particular regulations you're trying to imply.
Frye•2h ago
Implying that Kroger announced that it would shut down its Florida operations shortly after losing the lawsuit with the cyclist. Nothing more.

Here is the story

https://www.facebook.com/100064532630592/posts/pfbid0DYoPXet...

Dylan16807•1h ago
I wasn't saying you implied anything. I was saying rolandog seemed to go beyond general cynicism about corporations to an unreasonable complaint.

Looking at the details, I could say Kroger shouldn't have hired her but I'd rather say that if she was dangerous enough to not hire as a driver then her license shouldn't have been reinstated in the first place. (Though that's if "couldn’t recall if her driver’s license was suspended just months before he hired her" means it actually was suspended, and Bike Law isn't doing some trickery with wording.)

Either way good they paid out.

For the shutdown, I do think it's a coincidence. They're shutting down facilities in multiple states and that lawsuit isn't even a tenth of a percent of the relevant costs.

danpalmer•2h ago
This is a failure of business model and logistics, not a failure of the robotics.

> Fenyo added that Kroger’s decision to locate the Ocado centers outside of cities turned out to be a key flaw.

They over-spent on automating low-volume FCs. You could draw comparisons to Amdahl's law, they optimised the bit that wasn't the issue, the real issue was delivery distances and times.

Ocado has had good success with the robotics approach in the UK, because the UK is very high density compared to a lot of the US. Plus Ocado put a lot of work into creating good delivery routes, whereas it sounds like that wasn't a component of the automation stack that Kroger bought.

martinald•2h ago
I think we are mixing up two things here.

Robotics for picking and the general feasibility of grocery delivery in the US.

Ocado is good because their stock levels are far more accurate than the other supermarkets for online ordering, so you don't get as many substituted/missing items. This is sort of a side effect of having dedicated picking facilities Vs "real" supermarkets. I would not be surprised if they "lose" less stock as well compared to in supermarket fulfillment.

Then you have "is online grocery good in the US"? There's a lot of areas of the US that have reasonable density for this kind of service imo, and the road infrastructure is generally far superior to the UK which negates any loss of density (as you care about time between deliveries, not distance per se). I imagine the much better parking options in most suburbs in the US also helps efficiency (it's an absolute nightmare for a lot of the online delivery cos when there isn't off street parking in the UK and they have to park pretty far from the drop).

It sounds to me that Kroger just messed up the execution of this in terms of "marketing" more than anything.

brookst•2h ago
Weird headline, totally unsupported by the article.

According to the article, there were several strategic blunders, including trying the model outside of cities where lack of density cut against it. Plus the apparent dismissal any value their 2700 retail locations could provide.

As far as I can tell, Kroger didn’t acknowledge anything except a change in strategy.

irjustin•2h ago
Doesn't that support the article? their bet was massive robotics in centralized warehouses, but that turns out not to be profitable.

Unsure how the headlines doesn't align. Maybe it's different than what I'm seeing:

> Kroger acknowledges that its bet on robotics went too far

adxl•2h ago
Whenn I lived in Atlanta the Krogers each had a nickname. There was disco Kroger because of its disco ball. There was murder Kroger that purportedly had been the site of a murder.

This I guess is Robo Kroger.

softwaredoug•2h ago
In Charlottesville all the Krogers are quite different.

A weird, dark, maze-like warehouse-feeling Kroger that just closed.

We have a really nice Kroger a bit outside town. I always think of it as the Gucci Kroger.

A college-kid, cheaper Kroger close to the center of town. The cheaper version of the Harris Teeter nearby.

There's as much variation in individual Krogers as between other grocery chains!

bediger4000•2h ago
A common practice in Denver. Kroger's local brand is "King Soopers". There's Scary Soopers, Queen Soopers, and ironically El Safeway and Soviet Safeway.
nacozarina•1h ago
all it takes is one junior executive gets caught by one chinese robot saleswoman, and the next thing you know…