-
design
249 people
How things should be made and judged: what makes a design good, who should do the designing, and what an interface is for.
Which mental models should a designer think with?
-
LLMs
214 people
-
innovation
174 people
Where new things come from and how they spread: invention against diffusion, and being near the factory floor.
-
America
170 people
-
government
169 people
What states are for and what they are worse at than markets and networks: legitimacy, moral hazard, and who may be entrusted with power.
-
behavioural science
162 people
Applying how people actually decide to policy, rather than assuming how they should.
-
ambition
137 people
How much to take on and how hard to push: superlinear returns to effort, focus, slack time, and procrastination.
Why is ambition important?
-
education
116 people
How children are taught and tested: schools, tutoring, what a lesson at the right level does, and what AI changes.
-
AI and jobs
114 people
Whether AI displaces human work, which jobs go first, and what replaces them.
Will AI take the jobs?
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management
113 people
Running the place: an executive's calendar, dissent, severance, and what a manager is actually for.
-
agency
112 people
Acting on the world rather than waiting: what it does for work, whether it can be learned, and whether AI widens or takes it.
Why does agency matter?
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energy
112 people
Where does the energy come from, and what is stopping it?
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AI alignment
108 people
How dangerous is AI, and how soon?
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AI agents
107 people
Agents beyond the editor: software that acts on your behalf, and what independence it should be given.
-
politics
102 people
How people actually hold political views: tribes, partisanship, and whether anybody reasons their way in.
-
startups
95 people
-
happiness
93 people
What makes a life go well: whether it is meaning, love, virtue, enough money, or simply expecting less.
What makes a good life?
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simplicity
93 people
Less, but better: reduction as the way to make something good, and the argument about when it goes too far.
When does an abstraction help, and when does it hurt?
-
creativity
90 people
Making something new: where ideas come from, what conditions let them come, and whether a machine can have them.
Where does creativity come from?
-
taste
89 people
Whether good and bad exist in made things, and how a maker comes to tell them apart.
What is taste, and why does it matter now?
-
coding agents
84 people
What do coding agents change about software work?
-
motivation
84 people
What makes effort feel worth it: the neuroscience of wanting to act, apathy, dopamine, and habit.
-
software quality
84 people
Whether a program is any good and how anyone would know: tests, review, debt, and what a suite cannot cover.
What are tests for, and how much testing is enough?
-
product management
83 people
What a product manager is for, who decides what gets built, and what happens to that job once delivery is cheap.
What is a PM for, now that building is cheap?
-
developer tools
81 people
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ideas vs execution
81 people
Whether the idea or the execution behind it is what actually decides an outcome, and who deserves the credit.
-
humility
76 people
Knowing what you do not know: whether it makes you learn and decide better, or costs you the self-belief that gets things done.
Why does humility matter?
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open source
75 people
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investing
73 people
Putting money into markets on purpose: what a portfolio is for, whether active management earns its cost, and what money is actually a means to.
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AGI
70 people
-
writing
70 people
Prose as thinking: writing well, writing by hand while a model offers to do it, and who will still be able to.
-
optimism
69 people
Expecting things to go well: whether it is what gets things built, or a bias that forecasts keep paying for.
Why be optimistic?
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benchmarks
68 people
-
hiring
64 people
Finding people and judging them: referrals, open calls, contests, and reading the work rather than the CV.
How should software engineers be interviewed?
-
war
64 people
Armed conflict and preparing for it: military spending, alliances, and what changes when machines are in the loop.
-
infrastructure
63 people
Building the large physical things -- reservoirs, roads, pipelines -- and why some countries have stopped being able to.
-
social media
63 people
Feeds and the platforms that rank them: what an algorithm decides is important, and what curating your own sources costs.
-
Europe
59 people
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religion
59 people
Faith as a thing a society runs on, and what has been tried in its place.
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capitalism
53 people
Markets as a system rather than a market: what it is for, what it costs, and what people mean when they say they are retiring from it.
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China
51 people
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curiosity
50 people
Wanting to know for its own sake: what it does for good work, learning, creativity and a long life, and what happens to it with age.
Why is curiosity important?
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AI and human skill
49 people
Practised abilities decaying because a machine now does them: writing, thinking, reading anything long.
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empathy
49 people
Feeling what others feel: whether it makes better makers, leaders and people, or is a poor guide that should give way to compassion.
Does empathy make us better?
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OpenAI
49 people
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team size
49 people
How many people a thing needs, and what the extra ones cost: headcount, coordination, and the small-team claim.
-
health and fitness
48 people
The body as something you decide about: sleep, exercise, drugs of every legality, and how far optimising it is worth taking.
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Anthropic
47 people
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cybersecurity
47 people
Attack and defence in software: vulnerabilities, hardening, and what changes when a model is good at finding them.
-
documentation
46 people
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AI writing
45 people
Prose a model wrote: what gives it away, what it does to reading, and whether anyone should publish it.
-
Google
45 people
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neural networks
45 people
The architecture almost all modern machine learning is built on, and what changes when it gets deeper.
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scaling laws
44 people
Whether more compute keeps buying more capability, and where the curve now bends -- pre-training, post-training, test-time.
-
SaaS
43 people
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AI and science
42 people
Models used to do science rather than to write: rediscovering laws from data, compressing decades of biology, refereeing a proof.
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Psychotherapy
42 people
Treatment by conversation between a therapist and a patient, and the arguments about what in it actually does the work.
What makes psychotherapy work?
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physics
41 people
Fundamental physics: unification, relativity and quantum mechanics, and whether string theory is still the candidate.
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code generation
40 people
Machines emitting code and files, and whether the volume they produce is a cost somebody eventually pays.
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data centers
37 people
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mathematics
36 people
Doing mathematics: proof, conjecture, and what mathematicians want that other fields do not.
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vibe coding
36 people
Building software by describing what you want and accepting what comes back, without reading much of it.
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climate change
35 people
Warming and what would actually move it: emissions, carbon, and the difference between a gesture and a lever.
-
discipline
35 people
Doing the work when you do not feel like it: whether showing up is the whole secret, or systems and enjoyment beat willpower.
Is discipline the answer?
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market efficiency
35 people
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metascience
35 people
Research about research: whether published findings hold up, and what makes a field more or less reliable.
-
robotics
34 people
Machines that act in the world: humanoids, training data for robots, and how far behind language models they run.
-
semiconductors
34 people
The chips and the companies that make them: NVIDIA, TSMC, ASML, and what a fab can and cannot do.
-
Silicon Valley
34 people
The place as an idea: its appetite for disruption, its moonshots, and what it has given up on.
-
AI slop
33 people
Low-quality generated content at volume, and what it does to the places it lands in.
-
patience
33 people
Waiting for results: whether patience compounds into the thing that wins, or impatience is how work gets done fast.
Is patience a virtue?
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censorship
32 people
Who gets to remove what: speech, code and money, and whether a state prosecuting a platform is regulation or something else.
-
family
32 people
Children, partners and inheritance: the peak experience, and what to hand on.
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software performance
32 people
Speed as a mark of quality: bloat, boot times, and software that got slower on hardware that got faster.
-
chat interfaces
31 people
The text box as the way into a model: whether chat is the future of software or a terrible interface, and what replaces it.
-
courage
31 people
Acting despite fear: whether it waits for the fear to go, how it is built, and why so few people show it.
What does courage take?
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consciousness
30 people
What it is for there to be something it is like to be a system, and whether that can be measured.
Can a machine be conscious?
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journalism
30 people
How reporting is made and why to believe it: sourcing conventions, incentives, and reading across biased accounts.
-
solar
30 people
How cheap does solar get, and what does that change?
-
JavaScript
29 people
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the cloud
29 people
Rent the cloud or own the servers?
-
Apple
28 people
The App Store toll, the turn to services, and whether the company that made the machines is still that company.
-
stock market
28 people
Equities as a whole: what returns have been, whether prices carry information, and what attention does to them.
-
evolutionary biology
27 people
Natural selection as an explanation, including the problem of how cooperation survives it.
-
housing
26 people
What a place to live costs and why: how much gets built, zoning, and who is blamed for the price.
-
privacy
26 people
Keeping what people say to each other between them: end-to-end encryption, backdoors, and what a company will shut down rather than break.
-
Russia
25 people
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Addiction
24 people
Compulsive use that continues through the harm it causes — and the argument about whether it is a disease, a choice, or a response to pain.
-
aviation
24 people
Flying and the machines that do it: propulsion, airlines, runways, and what happened to Boeing.
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inflation
24 people
-
measuring intelligence
24 people
What it would mean to measure intelligence in a machine, as opposed to measuring how well it does one task it was trained for.
-
sustainability
24 people
Whether human wellbeing and environmental impact still have to trade off against each other.
-
democracy
23 people
Elections, the losers accepting them, and the rules that keep power answerable to voters.
-
fiscal policy
22 people
The spending-and-taxing half of macro, as against the central-bank half: multipliers, stabilisers, stimulus.
-
reinforcement learning
22 people
Training by reward: environments, verifiable tasks, value functions, and whether it works or merely beats what came before.
-
video games
22 people
Games as software and as storytelling: how they are made, by how few, and what the medium does better than film.
-
demographics
21 people
Who there will be: birth rates, population decline, and what a shrinking cohort does to everything downstream.
-
immigration
21 people
-
self-driving cars
21 people
-
interest rates
20 people
Does public debt cost what we think it does?
-
venture capital
19 people
Raising money and what it does to the product: the funnel that forces hard choices, and what happens without it.
-
mental models
18 people
Thinking tools borrowed across disciplines: inversion, second-order effects, circles of competence, probabilities, incentives.
Which mental models help you think better?
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Microsoft
18 people
The company and its bets: Copilot, the office tools business, and what agents do to both.
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attitude change
17 people
How public opinion moves over decades, and how badly people misjudge that movement.
-
batteries
17 people
Storage as the thing that decides how much intermittent generation is worth building.
-
crypto
17 people
-
friendship
17 people
The company you keep: whether the people around you make you better or worse, and how to choose them.
Do you become the people you spend time with?
-
space
17 people
Getting off the planet, and why anybody thinks it matters.
-
AI sentience
16 people
Whether there is anything it is like to be one of these systems, and whether the question is even well posed.
-
compilers
16 people
Programs that turn programs into programs: what a compiler can name, assembly, and building one that serves an editor.
-
recursive self-improvement
16 people
AI that improves AI: the loop where a model writes the code or the data that makes the next one.
-
tariffs
16 people
Taxes on imports: whether they close a trade deficit, what they do to prices, and what they are really for.
Do tariffs do what they are imposed to do?
-
transformers
16 people
The architecture that dropped recurrence in favour of attention, and that almost every large model since is built on.
-
electric vehicles
15 people
Cars on batteries: adoption forecasts, what drag and weight cost, and what they do to oil demand.
-
Japan
15 people
Stagnation, demographics, finance and industry, and what the rest of the world reads into them.
-
nuclear power
15 people
Fission as an energy source: what it costs, what it risks, and whether anything else can do the job.
-
economists
14 people
The economists themselves and the schools they founded -- Smith, Mill, Keynes, Hayek, Friedman -- rather than any one economic question.
-
remote work
14 people
-
language learning
13 people
How an adult picks up a second language: input against speaking practice, immersion against slow habit, and whether a teacher can do it for you.
-
Trauma
13 people
What overwhelming experience leaves behind, and whether it is stored in the body, the memory, or the loop between them.
-
computer vision
12 people
Teaching a machine to interpret images: recognising, classifying and organising what is in a picture.
-
permitting
12 people
The review a project must pass before it can be built, and the argument that it now blocks more than it protects.
Can a rich country still build things?
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personal websites
11 people
Publishing on something you own: plain text, formats that outlive their vendor, and syndicating from your own site outward.
-
value investing
11 people
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world models
11 people
Internal representations of an environment that an agent builds and revises, and whether machines can build them fast.
-
CBT
10 people
Cognitive behavioural therapy: brief, structured, usually delivered from a manual, and the most heavily trialled form of talking treatment.
-
MCP
10 people
The Model Context Protocol, an open standard for connecting AI models to external tools and data.
-
peer review
10 people
How science checks itself, and the case that the checking mostly does not work.
-
psychedelics
10 people
-
racism
10 people
Treatment by race, the words that excuse it, and what standing against it asks of people.
-
libertarianism
9 people
Escaping politics rather than winning it, and whether there is anywhere left to escape to.
-
Linux
9 people
-
cryptography
8 people
Keeping a computation secret from the machine running it -- obfuscation, permutations, and what has been proved.
-
dementia
8 people
Alzheimer's, Parkinson's and cognitive decline: what raises the risk, what is preventable, and what ageing well protects.
-
epidemiology
8 people
How a disease moves through a population, and what modelling it can and cannot settle.
-
HuggingFace
8 people
-
Psychodynamic therapy
8 people
The tradition descended from psychoanalysis: open-ended sessions working on self-knowledge and the therapy relationship, rather than a manual.
-
public debt
8 people
-
quantum mechanics
8 people
The theory itself and the arguments about what it means -- measurement, collapse, and whether nature is locally causal.
-
TypeScript
8 people
A typed superset of JavaScript that compiles to plain JavaScript.
Do static types make software better?
-
pruning
7 people
Cutting connections that are not doing the work — in a trained network, and in a developing brain.
-
Python
7 people
-
Attachment theory
6 people
That early bonds shape how a person seeks and avoids closeness for the rest of their life, and the couples work built on that claim.
-
CSS
6 people
-
formal proof
6 people
Machine-checked mathematics: proof assistants such as Lean, and what changes when correctness is certified rather than refereed.
-
gender equality
6 people
Equal rights and treatment for women and men, and what feminism is for.
-
network science
6 people
Why systems as different as a genome and the web share the same connection patterns.
-
EMDR
5 people
Eye Movement Desensitization and Reprocessing: a trauma therapy in which the patient recalls a memory while moving their eyes from side to side. Recommended as a first-line PTSD treatment; whether the eye movements themselves do anything is still argued about.
-
price gouging
5 people
Whether a price should be allowed to spike in a shortage, and what happens to supply when it is not.
-
prompt injection
5 people
Getting an agent to follow instructions it found instead of the ones it was given.
-
SQLite
5 people
An embedded SQL database engine that runs inside the application rather than as a separate server.
-
Telegram
5 people
The messaging platform and the positions its founder has taken about running it.
-
protein structure prediction
4 people
Predicting the three-dimensional shape a protein folds into from its sequence, a problem structural biology worked on for decades before AlphaFold.
-
animal welfare
3 people
How animals are treated, factory farming above all, and what eating them costs.
-
gun policy
3 people
Who may own which firearms, and what checks, ages and waiting periods would actually change.
-
music industry
3 people
How music is paid for and owned: streaming, albums, labels and who holds the masters.
-
Narcissism
3 people
From a trait to a personality disorder, and whether the people at the far end of it can be treated at all.
-
Nix
3 people
A package manager and build system built on reproducible, declarative package definitions, and the NixOS distribution built on it.
-
Omarchy
3 people
An opinionated Arch Linux and Hyprland desktop setup created by DHH and released in June 2025. 37signals adopted it company-wide the following August.
-
optimizers
3 people
The algorithms that actually move a model's weights during training, and the trade-offs between them.
-
quantitative easing
3 people
-
Ruby
3 people
The language itself rather than the framework: duck typing, Matz, and whether it should ever get static types.
-
self-sovereign AI
3 people
Agents running on compute no human owner can switch off: whether they are inevitable, and what they would do for money.
-
ARC-AGI
2 people
A benchmark created by Francois Chollet that tests whether a system can solve novel reasoning tasks it was not trained on.
-
degrowth
2 people
Deliberately shrinking output as a climate strategy, and the arithmetic of who pays for it.
Do we shrink our way out of the climate problem, or grow our way out?
-
GANs
2 people
Two networks trained against each other, one generating fake examples and one judging them, until the generator's output is convincing.
-
Hyprland
2 people
A tiling window manager for Wayland, known for its looks and for shipping with almost nothing configured.
-
Schema therapy
2 people
An approach developed by Jeffrey Young for personality disorders, working on the life patterns laid down in childhood and the modes a person switches between.
-
surgical outcomes
2 people
Measuring and publishing how individual surgeons and hospitals perform, and what those numbers can honestly support.
-
Arch Linux
1 person
A rolling-release Linux distribution known for shipping software early and leaving configuration to the user.
-
Polyvagal theory
1 person
Stephen Porges’s account of the vagus nerve as the switch between defence and social connection. Widely used in trauma therapy and contested in physiology.
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Ruby on Rails
1 person
The web framework created by DHH and released in 2004.