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Show HN: 289x speedup over MLP using Spectral Graphs

https://zenodo.org/login/?next=%2Fme%2Fuploads%3Fq%3D%26f%3Dshared_with_me%25253Afalse%26l%3Dlist...
1•andrespi•36s ago•0 comments

Teaching Mathematics

https://www.karlin.mff.cuni.cz/~spurny/doc/articles/arnold.htm
1•samuel246•3m ago•0 comments

3D Printed Microfluidic Multiplexing [video]

https://www.youtube.com/watch?v=VZ2ZcOzLnGg
1•downboots•3m ago•0 comments

Abstractions Are in the Eye of the Beholder

https://software.rajivprab.com/2019/08/29/abstractions-are-in-the-eye-of-the-beholder/
1•whack•3m ago•0 comments

Show HN: Routed Attention – 75-99% savings by routing between O(N) and O(N²)

https://zenodo.org/records/18518956
1•MikeBee•3m ago•0 comments

We didn't ask for this internet – Ezra Klein show [video]

https://www.youtube.com/shorts/ve02F0gyfjY
1•softwaredoug•4m ago•0 comments

The AI Talent War Is for Plumbers and Electricians

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1•geox•7m ago•0 comments

Show HN: MimiClaw, OpenClaw(Clawdbot)on $5 Chips

https://github.com/memovai/mimiclaw
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I Maintain My Blog in the Age of Agents

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The Fall of the Nerds

https://www.noahpinion.blog/p/the-fall-of-the-nerds
1•otoolep•9m ago•0 comments

I'm 15 and built a free tool for reading Greek/Latin texts. Would love feedback

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How close is AI to taking my job?

https://epoch.ai/gradient-updates/how-close-is-ai-to-taking-my-job
1•cjbarber•12m ago•0 comments

You are the reason I am not reviewing this PR

https://github.com/NixOS/nixpkgs/pull/479442
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Show HN: FamilyMemories.video – Turn static old photos into 5s AI videos

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How Meta Made Linux a Planet-Scale Load Balancer

https://softwarefrontier.substack.com/p/how-meta-turned-the-linux-kernel
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A Turing Test for AI Coding

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How to Identify and Eliminate Unused AWS Resources

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A2CDVI – HDMI output from from the Apple IIc's digital video output connector

https://github.com/MrTechGadget/A2C_DVI_SMD
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CLI for Common Playwright Actions

https://github.com/microsoft/playwright-cli
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Would you use an e-commerce platform that shares transaction fees with users?

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The Evolution of the Interface

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Azure: Virtual network routing appliance overview

https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-routing-appliance-overview
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Seedance2 – multi-shot AI video generation

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Πfs – The Data-Free Filesystem

https://github.com/philipl/pifs
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Go-busybox: A sandboxable port of busybox for AI agents

https://github.com/rcarmo/go-busybox
3•rcarmo•33m ago•0 comments

Quantization-Aware Distillation for NVFP4 Inference Accuracy Recovery [pdf]

https://research.nvidia.com/labs/nemotron/files/NVFP4-QAD-Report.pdf
2•gmays•34m ago•0 comments

xAI Merger Poses Bigger Threat to OpenAI, Anthropic

https://www.bloomberg.com/news/newsletters/2026-02-03/musk-s-xai-merger-poses-bigger-threat-to-op...
2•andsoitis•34m ago•0 comments

Atlas Airborne (Boston Dynamics and RAI Institute) [video]

https://www.youtube.com/watch?v=UNorxwlZlFk
2•lysace•35m ago•0 comments
Open in hackernews

$100 Hamburger

https://en.wikipedia.org/wiki/$100_hamburger
139•TMWNN•7mo ago

Comments

paulpauper•7mo ago
However, increasing fuel prices have since caused an increase in hourly operating costs for most airplanes, and a Cessna 172 now costs US$95–180[3] per Hobbs hour to rent, including fuel.[4]

I had no idea it is so cheap to rent a Cessna. A private jet is easily 20x that

bravesoul2•7mo ago
Makes sense. A bicycle is probably a 20th of the price of a limo to rent.
petesergeant•7mo ago
A private jet is a jet, where a Cessna 172 is a small unpressurised prop plane that dawdles along at 1/3 the speed and is uncomfortable to be a passenger in…
kdndnrndn•7mo ago
It's speed is also lower than many cars on the Autobahn at ~300 km/h

Granted, there's less of a risk of traffic in the sky than on the Autobahn

Tepix•7mo ago
„many cars on the Autobahn“? Not really, i very rarely see cars going 300 km/h.
abcd_f•7mo ago
Even 200 km/h is exceedingly rare.
nharada•7mo ago
Going 160 knots (300 kph) in a C172 would be pretty rare and is nearly at the maximum speed of the airframe. Cruise is more like 115 knots or 210 kph.
nharada•7mo ago
True but in most cases you'd be better off hopping in the car and booking it down the freeway to wherever you're going. Way cheaper and more reliable and honestly maybe faster depending on how far the airport is and how safe your pre-flight is.
haiku2077•7mo ago
Renting a Toyota Camry is also cheaper than hiring a tour bus with driver
fnord77•7mo ago
a Cessna engine costs maybe $30,000 to overhaul (every 1800 hours or so)

a Gulstream G650 engine costs maybe $4,500,000 to overhaul every 10,000 hours. Times 2.

a Cessna 172 sips about 8 gallons per hour.

A G650 guzzles about 500 gallons of fuel per hour

jet fuel is a little cheaper than avgas though

t0mas88•7mo ago
The price of the jet includes the cost of 2 crew to operate it and the organization around it to arrange everything for dispatch. The Cessna price listed here is for only the plane and fuel.
dyauspitr•7mo ago
A private jet comes with a crew and a pilot. This is a plane you have to fly yourself.
bombcar•7mo ago
You can often find a flight instructor willing to build hours at rates as low as $15/hr.
haiku2077•7mo ago
Although many can't officially take your money as that would he operating a commercial passenger service which is regulated differently.
bombcar•7mo ago
You just get a lesson!
ssl232•7mo ago
I guess landing fees add to the $100?
bravesoul2•7mo ago
And indeed, the burger itself.
tshubbard•7mo ago
Mostly fuel
t0mas88•7mo ago
Not really for most small airports. The plane is in the $ 200 per hour range, so a 1 hour out and 1 hour back flight is $ 400 in rental and fuel. The landing fee is more like $10-20 and often free if you buy fuel there.

Only big airports with mandatory ground handling are expensive to land at.

cjrp•7mo ago
I always envy the US GA scene. So many airports, little or no landing fees, no prior notice required. In the UK it’s almost designed to prevent GA.
ryandrake•7mo ago
Typical small US airports still don't charge landing fees to light aircraft, but things are changing. Now that ADS-B[1] is deployed widely, airports are looking at automated landing fee charges as another way to soak pilots, just because they now can. A number of companies are sprouting up to meet this demand and offer airports their turnkey systems to monitor and charge everyone who lands, sharing the profit with the airport.

1: https://www.wingsmagazine.com/monetizing-ads-b-data/

8n4vidtmkvmk•7mo ago
That sounds crappy. Hobby flying is already stupid expensive.
phinnaeus•7mo ago
> A group of pilots who had run out of hot cross buns on Good Friday decided to fly to the closest open bakery on Rottnest Island.

I can't believe that a bakery (the one bakery) on Rotto would be the closest open bakery...

safety1st•7mo ago
I haven't lived in Australia in many years so I don't know what it's like now, but back in the '80s when the first Rotto Bun Run happened I have no doubt that most businesses in Perth would have been closed for Good Friday. To hear the story of why the one on Rottnest was open you might have to fly there yourself :)

Bet the fuel was cheap back then too!

thomasfedb•7mo ago
We no longer require a bun crisis to lodge this flight plan. Plenty of flights are made to Rotto for a sausage roll, any time of the year.
kolinko•7mo ago
I don't know about Australia, but in Poland, on Easter and Christmass, I can easily believe there would be no single bakery open in the whole country.

Also, it was before google maps, so they couldn't just google nearest open bakeries. It might as well have been "nearest open bakery they were aware of". Funny how modern tech made the terms "closest open" and "closest known open" virtually the same.

pw6hv•7mo ago
I would have taken the yellow book and called every bakery listed there to check if they were open. I think sometimes the impact of technology is overstated :)
bell-cot•7mo ago
"Closest open" was virtually the same as "closest known open", back when "flying" could only mean "I've got a fast horse".
cwillu•7mo ago
You sat down next to the phone with the phone book for ten minutes.
chrismorgan•7mo ago
In the state of Victoria, Good Friday is one of the two-and-a-half restricted trading days where shops aren’t allowed to open, except for a few categories, and, simplifying, small businesses: <https://business.vic.gov.au/business-information/public-holi...>.

(In practice, almost all bakeries will be small enough they could open, but I think most won’t.)

I know South Australia has even more restrictions about when businesses can open, legal and customary. I imagine Western Australia to be more like South Australia in such ways than like Victoria, but I’ve not been there and don’t really know.

And that’s these days. Back in the mid ’80s, I’m almost surprised there was a single bakery open in the entire country.

djmips•7mo ago
I mean it's 2025 and real hamburgers are edging up in price so that $100 hamburger isn't thaat far away.
stavros•7mo ago
Finally, we managed to progress enough as a civilization that you no longer need to fly somewhere to get a $100 hamburger.
ChrisMarshallNY•7mo ago
There’s a number of “boutique burger” places around here, where the burgers start at $20, and most diners charge $16 for a normal burger. I hear that NYC can get downright crazy.
bombcar•7mo ago
Non-NY fast food places have gotten close to or breached $10 for the burger.

I still remember the “six dollar burger” at CJ.

ChrisMarshallNY•7mo ago
When I was a teenager, I was in a boarding school (1975 or so).

When we went on trips, we’d get $2 for lunch.

At McDonald’s, I could get 6 cheeseburgers and a Coke for that (I was a teen. I had no problem, eating them all).

kdndnrndn•7mo ago
That's like >$10 in today's money. Significantly more than I would give kids for lunch today

5 EUR (about $1 in 1975) is about the cost of a Döner Kebab which is more than enough for a teenager

felurx•7mo ago
Probably depends on the city, but where I'm from it's difficult (but probably not completely impossible) to get a Döner for 5€ :(
ChrisMarshallNY•7mo ago
> more than enough for a teenager

You watched any teenage boys eating, recently?

I assume a doner is about the same as a gyro sandwich, around here (usually $7-$10).

A good teenager can shovel down two of them, easy.

tromp•7mo ago
There's this $5000 hamburger: https://www.de-daltons.com/the-golden-boy/
djmips•7mo ago
Wow!
Cockbrand•7mo ago
Looking at the photo at https://www.de-daltons.com/the-golden-boy/#9f8739e7-f637-4e4..., it seems like the person eating the EUR 5,000 burger doesn't have enough money (or taste?) left to buy a decent beer to go with it.
m463•7mo ago
Went to betty burger in santa cruz and 2 burgers were close to $100 with the in-burger-purchases (on-burger onion rings for example)
w10-1•7mo ago
It's a sickening feeling to realize that to justify spending $50-100K on a plane and $1K/mo on maintenance and storage, you need some excuse to actually fly the damn thing at least 30X each year at $100/hr.

So no, it's not $100 and it's not a hamburger, but you gotta call it something in polite company.

amiga386•7mo ago
The economics are more that an entrepreneur rents the airplane to several enthusiasts in the area, each of whom enjoy flying and each would pay $100/hr for the thrill of flying.

But sure, there are also sometimes rich people and/or hyperenthusiasts who buy their own planes at great cost.

There are similarly people who enjoy car racing, horse riding, sailing, train journeys, and give excuses for their itineries but it's really to spend time on their hobby.

defrost•7mo ago
In Western Australia a number of people have aircraft for a variety of reasons, let's assume you have a working aircraft that's break even on costs wrt whatever business you run with that aircraft.

The $100 refers to the additional cost of doing something extra over and above.

People here also have garage built no quite aircraft purely for the fun of it and the challenge of the build:

* https://www.youtube.com/watch?app=desktop&v=ejG5bLdJxfI

* https://www.youtube.com/watch?v=1ILbQHnHPnY

rcxdude•7mo ago
Only a tiny minority of pilots own the aircraft they fly, and all the context I've heard of $100 hamburgers in is when someone needs to log a certain number of flight hours to keep their license current (in the UK you need to on average do a flight once every two months to keep your license)
bombcar•7mo ago
Most GA pilots rent or share ownership such that the $150/hr is “wet” and all inclusive - fuel, maintenance, capital costs, etc.

The planes at $150/hr are often considerably older than the pilot.

coldpie•7mo ago
I think we should eat the rich as much as the next guy, but a handful of aviation enthusiasts spending too much of their money on airplanes doesn't really break through the noise for me. We got bigger fish to fry.
bloggie•7mo ago
The plane, upkeep, and hourly rate cost a fair bit more than that these days
rcfox•7mo ago
My friend got his pilot's license somewhat recently and I went on a $100 hamburger run with him. It was a lot of fun! I studied gliders when I was in air cadets as a teen, so I knew a little bit about what was going on, and he let me take control for a few minutes (both seats had controls), but I was too nervous to do very much.
technothrasher•7mo ago
When I was in school, my dad's friend used to occasionally fly me home from Upstate NY to central MA in what were effectively $100 hamburger runs, just to get his flight hours in. My father-in-law also loves to tell me his stories of flying Navy T-33 trainer jets to DC in the 1950's just as an excuse to visit his girlfriend (who later became his wife).
bdcravens•7mo ago
A "joke" (will probably actually happen) in our company is that when we hit a certain revenue number, we'll reward ourselves by flying to Philadelphia in the morning, having a Philly Cheesesteak for lunch, and then fly home. Of course it won't be a private jet, but probably Southwest.