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Copenhagenize Index 2025: The Global Ranking of Bicycle-Friendly Cities

https://copenhagenizeindex.eu/
32•axelfontaine•52m ago•25 comments

It's Always the Process, Stupid

https://its.promp.td/its-always-the-process-stupid/
103•DocIsInDaHouse•1h ago•31 comments

DNS LOC Record (2014)

https://blog.cloudflare.com/the-weird-and-wonderful-world-of-dns-loc-records/
56•mikejeays•2h ago•17 comments

Iceland declares ocean-current instability a national security risk

https://www.dagens.com/news/iceland-declares-ocean-current-instability-a-national-security-risk
19•donohoe•59m ago•5 comments

Bronze Age mega-settlement in Kazakhstan has advanced urban planning, metallurgy

https://archaeologymag.com/2025/11/bronze-age-mega-settlement-in-kazakhstan/
27•CGMthrowaway•1w ago•2 comments

Hachi: An Image Search Engine

https://eagledot.xyz/hachi.md.html
45•warangal•2h ago•7 comments

System 7 natively boots on the Mac mini G4

https://macos9lives.com/smforum/index.php?topic=7711.0
257•ibobev•12h ago•65 comments

Build Your Own Router with URLPattern()

https://jschof.dev/posts/2025/11/build-your-own-router/
31•tobr•4d ago•3 comments

Show HN: I built Magiclip – an all-in-one AI studio

https://magiclip.io/
19•kokau•4h ago•2 comments

WebR – R in the Browser

https://webr.sh/
54•creata•5d ago•11 comments

WinApps: Run Windows apps as if they were a part of the native Linux OS

https://github.com/winapps-org/winapps
247•klaussilveira•4d ago•115 comments

Airbus A320 – intense solar radiation may corrupt data critical for flight

https://www.airbus.com/en/newsroom/press-releases/2025-11-airbus-update-on-a320-family-precaution...
415•pyrophoenix•18h ago•130 comments

Running a Business Means Contact with Reality

https://fredkozlowski.com/2025/11/02/running-a-business-means-contact-with-reality/
38•fkozlowski•3d ago•18 comments

Show HN: Explore what the browser exposes about you

https://neberej.github.io/exposedbydefault/
142•coffeecoders•4d ago•50 comments

Garfield's Proof of the Pythagorean Theorem

https://en.wikipedia.org/wiki/Garfield%27s_proof_of_the_Pythagorean_theorem
106•benbreen•9h ago•54 comments

Major AI conference flooded with peer reviews written by AI

https://www.nature.com/articles/d41586-025-03506-6
22•_____k•53m ago•7 comments

The CRDT Dictionary: A Field Guide to Conflict-Free Replicated Data Types

https://www.iankduncan.com/engineering/2025-11-27-crdt-dictionary/
23•birdculture•3h ago•0 comments

Every mathematician has only a few tricks (2020)

https://mathoverflow.net/questions/363119/every-mathematician-has-only-a-few-tricks
193•nill0•14h ago•48 comments

How stealth addresses work in Monero

https://www.johndcook.com/blog/2025/11/24/monero-stealth-addresses/
89•ibobev•4d ago•39 comments

Imgur geo-blocked the UK, so I geo-unblocked my network

https://blog.tymscar.com/posts/imgurukproxy/
442•tymscar•22h ago•149 comments

Chainalysis Successful Deanonymization Attack on Monero

https://darkwebinformer.com/chainalysis-successful-deanonymization-attack-on-monero-2/
21•Anon84•3h ago•6 comments

High air pollution could diminish exercise benefits by half – study

https://scienceclock.com/exercise-may-protect-less-when-air-pollution-is-high-study-finds/
121•ashishgupta2209•5h ago•52 comments

Confessions of a Software Developer: No More Self-Censorship

https://kerrick.blog/articles/2025/confessions-of-a-software-developer-no-more-self-censorship/
293•Kerrick•17h ago•245 comments

Leak confirms OpenAI is preparing ads on ChatGPT for public roll out

https://www.bleepingcomputer.com/news/artificial-intelligence/leak-confirms-openai-is-preparing-a...
359•fleahunter•4h ago•348 comments

So you wanna build a local RAG?

https://blog.yakkomajuri.com/blog/local-rag
340•pedriquepacheco•23h ago•81 comments

Anthony Bourdain's Lost Li.st's

https://bourdain.greg.technology/
100•gregsadetsky•3d ago•29 comments

DMT-induced shifts in criticality correlate with self-dissolution

https://www.jneurosci.org/content/early/2025/10/24/JNEUROSCI.0344-25.2025
43•Anon84•4h ago•22 comments

Molly: An Improved Signal App

https://molly.im/
379•dtj1123•22h ago•231 comments

The risk of round numbers and sharp thresholds in clinical practice

https://www.nature.com/articles/s41746-025-02079-y
50•asplake•1w ago•21 comments

A triangle whose interior angles sum to zero

https://www.johndcook.com/blog/2025/11/28/tricusp-triangle/
121•tzury•15h ago•56 comments
Open in hackernews

Copenhagenize Index 2025: The Global Ranking of Bicycle-Friendly Cities

https://copenhagenizeindex.eu/
32•axelfontaine•52m ago

Comments

smyk1777•37m ago
great website, very helpful for traveling cyclists
aallaall•28m ago
Of course it helps if the city, and country in general, is completely flat. Cities in Norway or Nepal have mother nature against all form of manual locomotion.
UltraSane•24m ago
E-bikes make this much less of an issue.
aallaall•12m ago
No, E-bikes doesn’t make this much less of an issue.
Toutouxc•10m ago
For me personally charging and keeping e-bike batteries in the apartment is a source of stress. I do keep and charge my drone and FPV plane batteries at home, even DIY ones, but e-bike batteries are much bigger and harder to chuck out of the window in case something goes wrong. I actually got rid of my e-scooter because of that, I just didn’t trust it.
mperham•19m ago
Are you a time traveler from 2010 who's never heard of e-bikes?
aallaall•16m ago
Do you think it’s a coincidence that the top two countries are completely flat?
noveltyaccount•5m ago
In Copenhagen, the vast majority of people park their bikes on the street using only a cafe lock (frame mounted, immobilizes the rear wheel). The bikes are generally nothing special, old rusty junkers, with one or three gears. E-bikes flatten terrain but also you need an indoor place to store it and they become a magnet for theft. A cheap bike you can ride to the Metro and leave in the elements is versatile in a way e-bikes are not. (I say all this as a massive e-bike fan living in a very hilly US city who recently visited Copenhagen and adored its bike culture.)
analog31•7m ago
Actually, I don't think it's a huge coincidence that a lot of cities are relatively flat, because they tended to develop near larger bodies of water.

Oslo is #18 on that list, not too shabby. Kathmandu is in a valley.

emilbratt•2m ago
In Trondheim, Norway we have the famous bycicle lift. :)

https://youtu.be/zipZ5kwhFfs?si=2kEsb-7wEpcS2Vkn

bethekidyouwant•24m ago
lol wpadmin
allannienhuis•21m ago
yes, seems the site is completely broken and I suspect someone is in the middle of a panicked reinstall or reconfigure of WP. I feel for them. [edit] back up now, it seems.
bgnn•23m ago
I'm not surprised to see Utrecht in the first place, but quite a bit surprised to see the other Dutch cities so low. No offense, but Rotterdam or The Heague is 100x better than Paris from safety and convenience point of view. I'm curious why is the ranking like this.
piva00•19m ago
How did you even manage to see the page? I just clicked on it and got to WPAdmin install page, asking to setup the admin account.

Completely agree with you, I've traveled with my bike to many cities in Europe, the Netherlands in general has a fantastic bike infrastructure, not even sure why it's called "Copenhagenize" since I go to Copenhagen quite often and compared to Dutch's bike infrastructure it's still not on par to it. It's definitely great but the Dutch have it ahead.

usrnm•12m ago
I've lived in both cities and I'm surprised to see Utrecht above Amsterdam. Both are great, but I'd say Amsterdam is actually more bike-centered
ErroneousBosh•19m ago
"Welcome to the famous five-minute WordPress installation process! Just fill in the information below and you’ll be on your way to using the most extendable and powerful personal publishing platform in the world."

Ooops.

heresie-dabord•14m ago
Bicycling is part of the mobility culture of Montreal, but whether Montreal is actually friendly to bicyclists is open to heated debate.

Cars dominate the topology.

spooky_deep•10m ago
100%. Only a North American could consider Montreal bike friendly.
werdnapk•1m ago
I really enjoy biking in Quebec city. I don't have as much experience with Montreal, but I can see how QC is a top spot.
spooky_deep•9m ago
Why the Copenhagenize Index when Copenhagen is not particularly bike friendly by Dutch standards?
usrnm•6m ago
It's even more hilarious to see Paris in top 5
aleda145•8m ago
I went to Copenhagen this summer. I was quite disappointed in the bicycle infrastructure, I felt like it was on par with what we have in Stockholm. Rented bikes and biked around for two days. It was nice!

Not sure how this index is being calculated (site breaks a lot), but my general feeling was that Denmark is just better at marketing than actual infrastructure when comparing to Stockholm at least

maelito•4m ago
Ranking Bordeaux and Nantes next to Amsterdam is nonsense.

Amsterdam is miles ahead in terms of infrastructure. This ranking dilutes the most important thing to get these results : good bike lancés everywhere with no discontinuity.

Disclaimer : I've built villes.plus, an open source automated evaluation of bike lanes. 100 points, compute itineraries in "secure" mode with Brouter between these points, count the % of secured km -> score.

Amsterdam tops at 8/10. Bordeaux is at 3/10, Nantes 2/10.

https://villes.plus/cyclables/Amsterdam?id=271110

https://villes.plus/cyclables/Nantes.8

mongol•3m ago
The biggest hurdle to biking for me is parking safely. Unless I can park it behind locked doors I have an anxious feeling that it may not be still there when I return. This is no problem when bicycling to work, but for arbitrary errands it is. A good lock helps of course, but it still feels like a gamble.
teekert•55s ago
In the Netherlands you just chain it to something then you’re fine. Otherwise it’s gone in 60 seconds.