Sign in

Lauren Leek

@laurenleek.eu
3.6K followers 943 following 205 posts

Social data scientist with too many questions | Assistant Professor at Leiden University | PhD from @EUI laurenleek.eu laurenleek.substack.com

PostsRepliesMedia
Lauren Leek @laurenleek.eu · 13h
New post 👀 laurenleek.substack.com/p/why-i-outs...
laurenleek.substack.com
Why I Outsource My Biggest Decisions to a Chatbot - and None of the Small Ones
It chose my job, my two months in Australia and my city, but I never let it pick my lunch. It took me six experiments and a few thousand simulated versions of my life to figure out why.
190
Lauren Leek @laurenleek.eu · 29/09/2026
OpenAI DevDay feels a bit like Christmas morning: the wrapping is always spectacular, what's inside doesn't always match the wishlist though
110
Lauren Leek @laurenleek.eu · 29/09/2026
Check out the interview I did with the amazing Petr Bittner in the run up to the ji.hlava international film festival - where I’ll be speaking in October:) www.inspirationforum.com/texts/pubs-a...
inspirationforum.com
Pubs Against Fascism! An Interview with Lauren Leek on Maps and “Third Places”
Inspiration Forum is the Ji.hlava International Documentary Film Festival’s platform for thinking about the contemporary world - Pubs Against Fascism! An Interview with Lauren Leek on Maps and “Third ...
033
Reposted by Lauren Leek
Ariel Edwards-Levy @aedwardslevy.bsky.social · 02/09/2026
guys, the political scientists are all busy, time to make sweeping and unsupported claims about voter behavior
924728
Lauren Leek @laurenleek.eu · 01/09/2026
Nine months ago, I wrote a Substack post about Google Maps and London's restaurants algorithm and offered an alternative map. The Guardian made a video about it. Google wouldn't comment. Today they've finally written to me about section 3.2.3, "No Scraping." Communication at last lol.
1624150
Lauren Leek @laurenleek.eu · 27/08/2026
Check out my new article written for @arguablymag.bsky.social 👇
1136
Reposted by Lauren Leek
Jay Van Bavel, PhD @jayvanbavel.bsky.social · 23/08/2026
Social media algorithms do no always reflect our values A new analysis of X finds that posts from accounts that people follow reflect users’ values—but that there is a misalignment between users’ values and the content the algorithm amplifies (in the "For You" feed). www.pnas.org/doi/epdf/10....
34116
Reposted by Lauren Leek
Benjamin Braun @benbraun.social · 17/08/2026
Lagarde: "A post by ECB economists on the giant AI bubble in the US? Only if you say it in the most ECB economist way." ECB economists: "We argue that economic research on past technological revolutions points to a worrisome conclusion: a correction of current stock market valuations is likely."
ecb.europa.eu
The AI boom: rational enthusiasm or the next dot-com bubble?
The European Central Bank (ECB) is the central bank of the European Union countries which have adopted the euro. Our main task is to maintain price stability in the euro area and so preserve the purch...
34517
Reposted by Lauren Leek
Toby Nangle @tobyn.bsky.social · 14/08/2026
"A world that keeps removing the unlikely also removes the things that could have become the next likely." Another great data post from @laurenleek.eu via @alphaville.ft.com Further Reading. laurenleek.substack.com/p/temperatur...
laurenleek.substack.com
Temperature Zero for Culture: Why Everything Is Starting to Look the Same
What 640 London shopping streets, 4,000 Billboard hits, a million films and synthetic AI personas tell us about why everything is flattening into sameness and how to regulate the algorithms behind it.
02816
Reposted by Lauren Leek
Hetan Shah @hetanshah.bsky.social · 12/08/2026
Blimey this is a good blog from @laurenleek.eu on how algorithms tend us towards monocultures and that markets won’t save us without some help. Read, and follow her laurenleek.substack.com/p/temperatur...
laurenleek.substack.com
Temperature Zero for Culture: Why Everything Is Starting to Look the Same
What 640 London shopping streets, 4,000 Billboard hits, a million films and synthetic AI personas tell us about why everything is flattening into sameness and how to regulate the algorithms behind it.
55720
Reposted by Lauren Leek
By Cory Doctorow (GPG 0xBF3D9110957E5F4C) @doctorow.pluralistic.net · 12/08/2026
In a *stellar* essay entitled "Temperature Zero for Culture: Why Everything Is Starting to Look the Same" by the data scientist Lauren Leek, we get a top-notch example of "putting things together": laurenleek.substack.com/p/temperatur... 11/
laurenleek.substack.com
Temperature Zero for Culture: Why Everything Is Starting to Look the Same
What 640 London shopping streets, 4,000 Billboard hits, a million films and synthetic AI personas tell us about why everything is flattening into sameness and how to regulate the algorithms behind it.
1326188
Lauren Leek @laurenleek.eu · 11/08/2026
Ah, the window seal in the train from The Hague to Amsterdam: perfect place for a performance review of the Dutch public transport chief. (Gotta respect him for taking up a hell of a job though!)
0172
Lauren Leek @laurenleek.eu · 10/08/2026
We have more data about ourselves than ever. So why is everything converging on the same? In my new post I use data on high streets, Billboard hits, a million films and my own AI personas to expose the algorithms behind the sameness and how to regulate them. laurenleek.substack.com/p/temperatur...
laurenleek.substack.com
Temperature Zero for Culture: Why Everything Is Starting to Look the Same
What 640 London shopping streets, 4,000 Billboard hits, a million films and synthetic AI personas tell us about why everything is flattening into sameness and how to regulate the algorithms behind it.
36120
Lauren Leek @laurenleek.eu · 06/08/2026
Ever wondered what your favourite LLM does when you change your effort level to ultra or max in the hope to get better answers? Just got recommended this very accessible article🙏 (Spoiler there might be some diminishing returns) magazine.sebastianraschka.com/p/controllin...
magazine.sebastianraschka.com
Controlling Reasoning Effort in LLMs
How LLMs Learn Low-, Medium-, and High-Effort Reasoning Modes
0122
Lauren Leek @laurenleek.eu · 06/07/2026
My new Tour de data Substack has taken off! With two stages having passed, I’ve already posted 3 new posts, a 🧵
1100
Lauren Leek @laurenleek.eu · 02/07/2026
NEW! Combining my two obsessions of cycling and political economy data into a new Substack: Tour de Data. Daily posts for every stage of the Tour de France, digging into what the race tells us about money, place, and power. Not just who's in yellow;) 🚴📊 tourdedata.substack.com
tourdedata.substack.com
Tour de data | Lauren Leek | Substack
Everyone watches the racing. I'm watching the data on riders, money, towns, and what the Tour is really about. Click to read Tour de data, by Lauren Leek, a Substack publication. Launched 18 hours ago...
4369
Lauren Leek @laurenleek.eu · 29/06/2026
I downloaded every charity in England & Wales expecting to find Britain's clubs dying. Instead I found that the problem is turning up and fastest in the poorest places, where it'd help most. New piece on the geography of belonging 🧵 open.substack.com/pub/laurenle...
1205
Reposted by Lauren Leek
Jack Russell @jackru.bsky.social · 28/06/2026
Just added the excellent @laurenleek.eu and @jamesdgriffiths.bsky.social to this pack which already includes @dylandifford.bsky.social and @alexselbyb.bsky.social amongst other great data journalists. Please get in touch with suggestions to add. I'm particularly looking for anyone covering Ireland.
162
Lauren Leek @laurenleek.eu · 26/06/2026
Want to hear me challenge a publican on @bbcnews-world-rss.bsky.social "Radical with Amol Rajan" based on my research on pub closures? oh wait, we actually (mostly) agreed. Do check it out from 18min onwards here: www.bbc.co.uk/sounds/play/...
bbc.co.uk
Radical with Amol Rajan - Last Call for the Local: Are Old Pubs the Solution to Modern Crises? (Oisín Rogers) - BBC Sounds
The Devonshire’s landlord argues why, and how, we should save the British public house.
070
Lauren Leek @laurenleek.eu · 25/06/2026
I have been practicing for when AI takes over our jobs by taking extended holidays. I’ve gotten ahead of the curve.
2211
Lauren Leek @laurenleek.eu · 17/05/2026
Bought booza in Punchbowl today. By total coincidence, same family that ran the shop below my grandmother's window in Lebanon. This post became a piece on why London is losing its Brick Lanes because it's well-designed, and Sydney's strips survive because it isn't. open.substack.com/pub/laurenle...
open.substack.com
The Basket and the Booza
Why London keeps losing its independent neighbourhood restaurants, and what a basket lowered from a Lebanese window taught me about what is happening.
0146
Lauren Leek @laurenleek.eu · 15/05/2026
Found in Surry Hills (Sydney) street library: Quantitative Analysis for Management, fairy tales and faith books. Gentrification is complete.
0120
Reposted by Lauren Leek
Rob Johns @robjohns75.bsky.social · 08/05/2026
It's kind of @laurenleek.eu to like this because I drew very heavily on her laurenleek.substack.com/p/the-quiet-... in piloting this section last year. I gave due credit, of course, but frankly money should probably have changed hands too.
laurenleek.substack.com
The quiet collapse of surveys: fewer humans (and more AI agents) are answering survey questions
I show data on two trends undermining surveys: the collapse of human response rates and the increase of AI agents. I'll also discuss downstream implications and propose some possible solutions.
031
Lauren Leek @laurenleek.eu · 07/05/2026
Data engineers: I’m busy building a large-scale cloud data pipeline and want to get the foundations right from the start. What’s the one thing you wish you’d set up early? 🙏
173
Lauren Leek @laurenleek.eu · 01/05/2026
Still trying to figure out the Gold Coast. Skyscrapers as beachfront, strip malls 200m inland, barely footpaths, no city centre and somehow Australia’s favourite holiday destination and 6th biggest city. Please explain (in European).
160
Lauren Leek @laurenleek.eu · 29/04/2026
Not saying we’re in trouble but five black swans on my morning run? I’d short.
0191
Lauren Leek @laurenleek.eu · 26/04/2026
Eh yes, Canberra may be the most boring capital in the world, but buses with front bike racks and superb road cycling through national parks? That’s elite boring done well, if you ask me.
1964872
Lauren Leek @laurenleek.eu · 24/04/2026
Great to see my latest substack post and interactive map of the pokies and third places featured in the most recent Guardian Crunch #datavis newsletter:)
0111
Reposted by Lauren Leek
Nick Evershed!? @nickevershed.bsky.social · 23/04/2026
great read, and now I'm wondering how much of the unexplained % of pokies takings from your model is due to money laundering! www.smh.com.au/national/nsw...
smh.com.au
The ‘housewife’, the ‘childcare worker’ and the gigantic scam flourishing in Sydney
A damning cache of documents has laid bare the extent to which criminality has been allowed to take place in well-known venues.
231
Lauren Leek @laurenleek.eu · 19/04/2026
Victoria made public transport temp free. Ridership spiked. Headlines: proof of cost barrier. But compare Victoria to NSW, where fares didn’t change and the difference in car use is small. Data shows uplift is from existing riders using it more. So the barrier isn’t cost but trip completeability?
342
Lauren Leek @laurenleek.eu · 15/04/2026
Curious why in one NSW town of 2,209 people gambling machines extracted almost $4,000 per person? I wrote about how Australia kept its third places alive by hiding the cost inside them, why Britain’s reform backfired and I even tried to beat the machine myself. open.substack.com/pub/laurenle...
open.substack.com
The Machine Is Friendly. That's Why It Wins.
How Australia kept its third places alive, what it hid inside them, why Britain’s fix made the problem worse, and what happened when I tried to beat the machine.
8397
Lauren Leek @laurenleek.eu · 12/04/2026
Finally, a valid instrument (spotted in NSW)
1140
Reposted by Lauren Leek
Andrew Heiss @andrew.heiss.phd · 10/04/2026
I've always been curious about how seeds *actually* work when generating random numbers, so I decided to figure it out for class yesterday and it's actually REALLY NEAT AND MAGICAL. Check out this little Excel file I made to show how a seed can creates a set of pseudo random numbers
Screenshot from Excel showing how 11 different random numbers are generated given the formula $(a X_n + c) mod m$ and a seed of 1234. The modulus from the previous iteration is used in the subsequent iteration to make the number, but for this to work with the first iteration, you need a starting value—hence the seed
7669
Reposted by Lauren Leek
Christopher Barrie @cbarrie.bsky.social · 09/04/2026
So X is a cess pit Bluesky is dying Linkedin is AI LoveWhereYouWork slop Am I gonna have to just shitpost on Strava now?
2151
Reposted by Lauren Leek
@ratlimit @ratlimit.bsky.social · 06/04/2026
Claude is down :/ so I’m just running my sink
2118281689
Lauren Leek @laurenleek.eu · 02/04/2026
Using generative AI for non-generative ML and why this matters more than most people realise. I joined the Learning Curve podcast to talk about this, my Substack work, and what's next for me. I don't hold back 🎙️ youtu.be/L88L8kDuuMM
youtu.be
The Learning Curve EP2 Lauren Leek
YouTube video by ModivusAI
060
Lauren Leek @laurenleek.eu · 31/03/2026
Hiring a car soon in Australia and my family’s advice: fill up before you leave the city since regional stations are closing. Aus imports 80% of its refined fuel and only holds 39 days of reserves. Prices up 100c/litre since Feb, the govt’s excise cut saves only 26c. Panic buying mainly for now…
120
Lauren Leek @laurenleek.eu · 27/03/2026
Art in Singapore be like #biennale
1223
Lauren Leek @laurenleek.eu · 22/03/2026
Broke my own rule and made an Instagram (for work promo though). First observation: the follow recommendations are shit. 20 mutual connections, same location, same vibe and no suggestion but somehow my local primary school friends do pop up? Weak graph traversal, Meta.
150
Reposted by Lauren Leek
The Guardian @theguardian.com · 19/03/2026
How Google Maps is shaping where we eat – video
theguardian.com
How Google Maps is shaping where we eat – video
Josh Toussaint-Strauss investigates disappearing restaurants on Google Maps with Lauren Leek, a social data scientist, who grew so frustrated with this problem that she decided to build her own.
35016
Lauren Leek @laurenleek.eu · 19/03/2026
A few months ago I got frustrated and asked why some restaurants show up on Google Maps and others - sometimes better ones - simply don't. @theguardian.com made a documentary about what I found. (Please do not mind my bad webcam.)📽️ www.theguardian.com/world/video/...
theguardian.com
How Google Maps is shaping where we eat – video
Josh Toussaint-Strauss investigates disappearing restaurants on Google Maps with Lauren Leek, a social data scientist, who grew so frustrated with this problem that she decided to build her own.
13311
Reposted by Lauren Leek
Len Metson @lenmetson.com · 17/03/2026
A bit of data science, a bit of social history, what more could you ask for? Another excellent blog by @laurenleek.eu open.substack.com/pub/laurenle...
open.substack.com
London's Divide Was Called Character. It Was Actually Policy.
I built a machine learning model to find London's divide and you can enter your postcode to see which side you're on. We've been blaming the wrong people for it.
0145
Reposted by Lauren Leek
Owen Garling @ojgarling.bsky.social · 19/03/2026
Fantastic work (again) from @laurenleek.eu on London's dividing lines and the importance of naming things. Here in Cambridge we have the Muesli Belt and the Bicycle Economy. (And yes, Flat Whites in Sydney are v good. Enjoy your cycling)
0112
Reposted by Lauren Leek
Simon Hix @simonhix.bsky.social · 19/03/2026
Another amazing piece of data analytics by @laurenleek.eu, this time on the geographic divisions in London and what caused them: open.substack.com/pub/laurenle...
open.substack.com
London's Divide Was Called Character. It Was Actually Policy.
I built a machine learning model to find London's divide and you can enter your postcode to see which side you're on. We've been blaming the wrong people for it.
1172
Lauren Leek @laurenleek.eu · 18/03/2026
Somehow always accidentally passing by on time to exercise my democratic rights. Today the local (Dutch) ones: seriously torn between a local party that gets it (our mechanic is running) and the national one I’m a member of since I was 16. Send help - I’m being judged.
160
Lauren Leek @laurenleek.eu · 16/03/2026
Sydney named its socio-economic divide the "latte line" and has been arguing about who drew it for 20 years. London has the same divide and calls it "character." I built a machine learning model to do the impolite thing: draw it and blame someone. open.substack.com/pub/laurenle...
open.substack.com
London's Divide Was Called Character. It Was Actually Policy.
I built a machine learning model to find London's divide and you can enter your postcode to see which side you're on. We've been blaming the wrong people for it.
25717
Lauren Leek @laurenleek.eu · 11/03/2026
Sometimes I miss the Netherlands. At my old work a normal breakfast, lunch and snacks was a loaf of bread and a jar of Calvé peanut butter, dipped in tea so it was more efficient to eat.
1290
Lauren Leek @laurenleek.eu · 18/02/2026
Central bank independence score just decreased in my dataset, but my respect just increased. Risky precedent though?
181
Reposted by Lauren Leek
Ben Ansell @benansell.bsky.social · 16/02/2026
This is so good. Both as a little political economy analysis of British pubs and as a guide to how to use machine learning to learn about humans.
05212