Red Blob Games @redblobgames.com Hi! I'm Amit Patel. I explain algorithms and math with interactive web pages (incl. pathfinding, hexagons, procgen maps, voronoi). Wrote Solar Realms Elite; helped w/Barren Realms Elite and Realm of the Mad God. https://www.redblobgames.com/
James Peacock @peacockreports.bsky.social Head Meteorologist at MetSwift, working to revolutionise delivery of weather information.
LinkedIn: https://t.co/pUCAQfAfRP
Alex Johansson @alexvscoding.bsky.social Award winning experimental designer, educator and maker from Yorkshire. Advocate for approachable design, makes playful experiences for those marginalised by tech, most recently people with dementia. https://presskit.itch.io/alex-johansson-presskit
Juraj Mikurcik @jurajmikurcik.bsky.social Architect living in rural Herefordshire. UK support for ecococon.eu straw wall panels and Ecological Building Systems. Rides bikes.
Living in a 100% electric bio-based passivhaus with zero energy bills, see the blog: oldholloway.wordpress.com
Alhambot @alhambot.bsky.social Procedurally-generated mosaics inspired by the Alhambra in Granada, Spain. Made with Python and a lot of math. By @samplereality.bsky.social.
Obsidian @obsidian.md The free and flexible app for your private thoughts. For help and deeper discussions, join our community: http://obsidian.md/community
Martin Kleppmann @martin.kleppmann.com Associate Professor at @cst.cam.ac.uk, researching decentralised systems and security protocols. Advisor to the Bluesky team. Wrote “Designing Data-Intensive Applications” (O’Reilly). he/him
Simon Evans @drsimevans.carbonbrief.org Press Gazette energy & environment journalist of the year 2022
Highly commended:
Society of Editors 2025
Shortlisted:
Press Awards 2025
Press Gazette 2025
AOP 2025
Deputy Ed + Snr Policy Ed, Carbon Brief
simon.evans@carbonbrief.org
Duncan Weldon @duncanweldon.bsky.social Economics writer. Author.
Expect history, economics, finance and other stuff. Some cricket.
Wrote Two Hundred Years of Muddling Through.
Blood and Treasure, on the economics of war, out now.
Stephen Jarvis @stephenjarvis.bsky.social Assistant Professor in Environmental Economics at LSE. Posting mostly about energy/enviro research. https://stephenjarvis.github.io/
Roads.org.uk 🏳️🌈🏳️⚧️ @roads.org.uk I write about UK road infrastructure and history! Join me for updates and other stuff from the UK's favourite roads website, www.roads.org.uk
John Bull @garius.bsky.social He/Him. Writer. Historian. Host of "The Untitled History Podcast." Strategy streamer. Tech Strategist. Founding Editor of @lonrec. Orient fan. Business/Writing: business@longformist.co.uk. Agent: @pastpreservers.bsky.social
Gergely Orosz @gergely.pragmaticengineer.com Writing The Pragmatic Engineer (@pragmaticengineer.com), the #1 technology newsletter on Substack. Author of The Software Engineer's Guidebook (engguidebook.com). Formerly at Uber, Skype, Skyscanner. More at pragmaticengineer.com
Torsten Bell @torstenbell.bsky.social Member of Parliament for Swansea West
Adam Kucharski @adamjkucharski.bsky.social Epidemiologist/mathematician. Professor at London School of Hygiene & Tropical Medicine. Author of The Rules of Contagion and The Perfect Bet. Views own.
New book Proof: The Uncertain Science of Certainty available now: proof.kucharski.io
Davis Bennett @davisvbennett.bsky.social Open source software developer. I spend a lot of time working on Zarr. Formerly worked on bioimaging data stuff @hhmijanelia.bsky.social
Josh Moore @joshmoore.bsky.social Standardizing open bioimaging data infrastructure
Technical Director – @gerbi-gmb.de
Member & Co-Founder – @image.coop
TA1 Lead – @nfdi4bioimage.bsky.social
#OSS Maintainer for @openmicroscopy.org and @zarr.dev
Michael Le Page @mjflepage.bsky.social Award-winning reporter at New Scientist who clings to the belief that good journalism mattters. I write about life on Earth, inc climate ☀️, food 🍱, CRISPR 🧬 and biomed 💊
My bio & stories: https://www.newscientist.com/author/michael-le-page
Tim Head @betatim.bsky.social Trained scientist building software. Also: hike, bike, run, swim, ski, pizza
Jenny Chase @solarchase.bsky.social Solar and clean power analyst at BloombergNEF, goose keeper. Author of a book, "Solar Power Finance Without the Jargon". Opinions all my own.
Ed Hawkins @edhawkins.org Climate scientist at the National Centre for Atmospheric Science, University of Reading | IPCC AR6 Lead Author | MBE | Views own | https://edhawkins.org
Warming Stripes: http://www.ShowYourStripes.info
Matthew Somerville @dracos.co.uk I help people report broken street lights, find out their bin day, plan train travel, manage an orchestra, locate the nearest postbox, research old theatre productions, keep time in a choir, and occasionally play board games | https://dracos.co.uk
Ember @ember-energy.org Global energy think tank accelerating the clean energy transition with data and policy #CleanPower info@ember-energy.org
https://ember-energy.org/
Auke Hoekstra @aukehoekstra.bsky.social Sharing hope and debunking FUD against electric vehicles and renewable energy. Director NEONresearch.nl @TUeindhoven Founder Zenmo.com.
Will Jennings📉🗳️ @drjennings.bsky.social I research and write about politics, public policy, public opinion, polls, elections, geography, place, trust. I run on espresso.
Rachel Coldicutt @rachelcoldicutt.bsky.social Hopeful technologist.
Community tech, careful innovation, socially progressive tech policy.
https://www.careful.industries
https://hopeful.technology
https://buttondown.email/justenoughinternet
DMs don't work but hello@careful.industries will find me
Short Circuit @shortcircuit.org.uk Organisers of retro events - see https://retrofest.uk/ for our latest. If you want to talk about prop hire, buying or selling (or donating!) retro hardware or coming to visit us, please come say hi at https://shortcircuit.org.uk/
Steve Klabnik @steveklabnik.com #rustlang, #jj-vcs, atproto, shitposts, urbanism. I contain multitudes.
Working on #ruelang but just for fun.
Currently in Austin, TX, but from Pittsburgh. Previously in Bushwick, the Mission, LA.
Guy Patrick Banim @guybanim.eurosky.social EU preventive diplomacy, mediation & digital peacebuilding | Build Up ˆ | Visiting Professor @collegeofeurope | Feminist | Irish or British or both - always European | live from Tirana
🇪🇺🇮🇪🇬🇧🇵🇹 🕊️
https://howtobuildup.org/about-build-up/team/guy-banim/
Helen Pearson @helenpearson.bsky.social Author of BEYOND BELIEF (2026) | Senior Editor at Nature | Honorary Professor of Practice at UCL | science journalist, author, speaker
Anil Dash @anildash.com the internet's uncle • waging a victorious 2-front war against cars and christmas • big fan of being a big fan of things • go read https://anildash.com
Timothy Gowers @wtgowers.bsky.social Mathematics professor at Collège de France and fellow of Trinity College Cambridge.
Laurence H. Tribe @tribelaw.bsky.social After teaching and writing about constitutional law for 50 yrs, it seemed time for me to reach beyond Harvard’s walls — to spread understanding and appreciation of the rule of law, of justice as fairness, and of a republic if we can keep it
The Empty City @davidallengreen.bsky.social Writes about law and policy at The Empty City blog and elsewhere.
Birmingham/London. Janeite. #AVFC
www.theemptycity.com
Dmitry Grozoubinski @explaintrade.com Author of Why Politicians Lie About Trade | Trade and Negotiations Explainer. Forever D&D DM.
🇺🇦 Born. 🇦🇺 Raised. 🇨🇭 Based.
Media and training: explaintrade.com
Consultancy network: auroramacro.com
Speaking representation: cwgspeakers.com
Alt18F @alt18f.bsky.social Delivered effective, efficient, and secure digital services for the American people until we were forced to stop on March 1, 2025. Not an official government account. Reposts are not endorsements. Our new website: https://18f.org/ #AltGov
Arthur Snell @snellarthur.bsky.social Writer, podcaster and former diplomat.
Buy my book👇
https://tr.ee/ElementalBookshopOrg
https://tr.ee/ElementalAmazon
https://tr.ee/ElementalWaterstones
If you don't want to buy my book, you could buy me a coffee👇
https://ko-fi.com/snellarthur
Sam Freedman @samfr.bsky.social Writes the most popular UK Substack (samf.substack.com)
Author of Sunday Times bestselling book "Failed State". (An Economist and Financial Times Book of the Year for 2024). Working on book two.
Senior fellow: Institute for Government
Eric Topol @erictopol.bsky.social physician-scientist, author, editor
https://www.scripps.edu/faculty/topol/
Ground Truths https://erictopol.substack.com
SUPER AGERS https://www.simonandschuster.com/books/Super-Agers/Eric-Topol/9781668067666
Matt Biddulph @biddul.ph AI at io
Lewis Goodall @lewisgoodall.com Journalist, Reporter, Writer, Presenter @ Britain's biggest news podcast The News Agents (Mon-Fri) and Sunday with Lewis Goodall on LBC 10-12.
Website: lewisgoodall.com
Email: lewis.goodall@global.com
Substack: https://goodallandgoodluck.substack.com
Sam Lowe @samuelmarclowe.bsky.social Trade policy. Partner @ Flint Global. Associate fellow @ Chatham House.
I have a Substack: https://mostfavourednation.substack.com
Tom Hals @tomhals.bsky.social Correspondent for Reuters, covering legal news
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
Ned Batchelder @nedbat.com Python, Boston, mathy fun, juggling, autism parenting. https://nedbat.com
Caitlin Moran @mscaitlinmoran.bsky.social In the culture wars, I want to be the bit on Christmas Day where they all knocked it on the head for a bit and played football.
Andy Kirk @visualisingdata.com An Independent Data Visualisation Expert educating, inspiring, and celebrating data viz excellence, everywhere since 2010.
🇬🇧 in 🇮🇪
It’s all here http://visualisingdata.com/
Jack Kelly @jack-kelly.com Building open source ML to reduce CO₂ emissions from the electricity grid
• Python, climate, forecasting weather & energy, AI, open data & science, Rust
• Now: Co-founder @openclimatefix.org
• Prev: DeepMind, NESO, Imperial
• https://github.com/jackkelly
Emilia White @eliffant.bsky.social recent Oxford Uni MBiochem graduate interested in DNA replication and repair | 23 | other interests include knitting, sewing, embroidery and cooking. 🏴🧬👩🏼🔬
Hilary Mason @hilarymason.com Co-founder & CEO of Hidden Door. I <3 cheeseburgers and making beautiful things. I know a thing or two about AI, but it's people who matter. I am interested in many things.
NYC
Matt Webb 🌸🌼🌸 @genmon.fyi building inanimate.tech / blogger at interconnected.org
Kent Beck @kentbeck.com Independent I guess these days you'd say content producer, artist, programmer, musician, pokerist. More about me at https://KentBeck.com.
Brady Haran @bradyharan.bsky.social Videos & Podcasts
More about my work at: https://linktr.ee/bradyharan
Ewan Birney @ewanbirney.bsky.social Director of EMBL-EBI. I have an insatiable love of biology. Consultant to ONT and Cantata (Dovetail)
Brian Hayes @bit-player.bsky.social Words, pictures, and code, mostly on subjects mathematical--although the mind wanders. Former magazine editor and columnist (American Scientist, Scientific American). Now writing fiction.
Nick Loman @pathogenomenick.bsky.social Public health (meta)genomics & bioinformatics, Prof @unibirmingham.bsky.social, Director @imibirmingham.bsky.social & @climb.ac.uk
Star Simpson @starstar.bsky.social Aviation, automation & a long list of other interests. 🇩🇪🇯🇲 Repeal the Jones Act ⛔️🚢 From Hawaii 🌺 Used to live in Iceland 🇮🇸 ég get varla talað íslensku. Eyes bigger than bookshelf.
Ed Southall @edsouthall.bsky.social Maths Edu | Speaker | Author http://amzn.to/2JmoTFv | Doctor (not the save your life kind, just the useless philosophising kind.)
Dana M. Lewis @danamlewis.bsky.social Researcher, developer, author.
-Created #OpenAPS, “PERT Pilot”, “Carb Pilot”.
-Moderated #hcsm.
-Wrote #APSBook (http://ArtificialPancreasBook.com) + others.
- Blog & research & more: DIYPS.org
Leland McInnes @lelandmcinnes.bsky.social A Mathematician dabbling in Data Science, especially unsupervised learning and data exploration. UMAP, HDBSCAN, PyNNDescent, DataMapPlot. (He/Him)
Mat Kelcey @matpalm.com data nerd wannabe
https://matpalm.com/
Melanie Mitchell @melaniemitchell.bsky.social Professor, Santa Fe Institute. Research on AI, cognitive science, and complex systems.
Website: https://melaniemitchell.me
Substack: https://aiguide.substack.com/
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Colin Angus @victimofmaths.bsky.social Professor of Alcohol Policy in the Sheffield Addictions Research Group (@SARG-SCHARR), graph drawer, data botherer, cake eater, incompetent cyclist and intermittent birder.
Lars Brinkhoff @larsbrinkhoff.bsky.social Messages from an alternative universe where the PDP-10 is alive and well.
Joshua Bloch @joshbloch.bsky.social Effective Java author, API Designer, CMU Prof, Swell guy.
Andrew Steele @statto.bsky.social Ageing biologist (aren’t we all?)
Author of https://ageless.link/
Presenter of https://www.youtube.com/DrAndrewSteele
Founder of @thelongevityinitiative.org
Simon Willison @simonwillison.net Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Jo Morgan @mathsjem.bsky.social Maths teacher + HoD. Author of A Compendium of Mathematical Methods. Blogger. Speaker.
Matt Parker @standupmaths.bsky.social That maths guy from the internet.
Steven Strogatz @stevenstrogatz.com Mathematician, writer, Cornell professor. All cards on the table, face up, all the time. www.stevenstrogatz.com
David Henig @davidheniguk.bsky.social Trade wonk, Brexit bore, globalisation defender, music lover, cricketer, gardener, supporter of mediocre football teams, who knows where the time goes?
Gaby Hinsliff @gabyhinsliff.bsky.social Guardian columnist & writer, author of Half a Wife, sometimes on telly/Guardian Politics Weekly podcast. No, I didn't write the headline. Event host & speaker https://www.specialistspeakers.com/?p=2705 
Julia Evans @b0rk.jvns.ca programming and exclamation marks
blog: jvns.ca
zines: wizardzines.com
Eliane Wigzell @elianewigzell.bsky.social History, politics, cookbooks, wild orchids
John Burn-Murdoch @jburnmurdoch.ft.com Columnist and chief data reporter the Financial Times | Stories, stats & scatterplots | john.burn-murdoch@ft.com
📝 ft.com/jbm