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One spine, four threads: the neuroscience of building, the same science followed for its own sake, reported essays on power and money, and complete start-to-end investigations. Search it, or pick a thread below.
Real brain science decoded into the 0→1 product decisions builders actually make.
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Build for the four-slot brain No theory matches that thread yet — try a broader one, or clear the filter.
Brain Science01 Design the ending, not the average
Tech02 When you run out of connections, you don't run out slowly
Brain Science03 You get one "look here" every half second
Building04 Killing your favorite feature is the most senior thing you'll do
Tech05 The better your AI gets, the harder the human's job becomes
Brain Science06 The first path you teach becomes the only one they see
Brain Science07 What you teach all at once, they forget all at once
Brain Science08 One unit is however big you make it
Brain Science09 People spread evenly across whatever buckets you give them
Brain Science10 Stop trusting what users say they'll do
Brain Science11 The caricature beats the photograph
Brain Science12 Ninety out of a hundred beats nine out of ten
Brain Science13 Warm water feels hot to a cold hand
Brain Science14 Why showing the work beats the instant answer
Brain Science15 How long did the last one take?
Brain Science16 The statistic that makes your testimonial worse
Building17 "We'll add it later" is usually a no
Brain Science18 Your points system might be lowering engagement
Tech19 Exactly once is a story you tell yourself
Brain Science20 Your users think they're finished changing. They're not.
Growth21 The best referral makes the sender look good, not richer
Brain Science22 The feature in focus always looks bigger than it is
Brain Science23 The plan nobody buys is doing the selling
Brain Science24 Paying hurts — so decide where to put the hurt
Brain Science25 The name that's easier to say gets the benefit of the doubt
Tech26 When the cache expires, everyone shows up at once
Brain Science27 Your best testimonial looks better with company
Brain Science28 Adding a feature can make your product look worth less
Building29 Your About page is for the people who don't trust you yet
Brain Science30 How much better before anyone notices
Brain Science31 You love what you helped build — and so will they
Tech32 You can't have all three when the network breaks
Brain Science33 Don't make them remember what you could just show
Brain Science34 The pretty version gets graded on a curve
Growth35 The average user doesn't exist
Brain Science36 The name your product is borrowing
Tech37 A feature flag is a loan against your future simplicity.
Brain Science38 One thing done conspicuously well makes the rest look better than it is.
Brain Science39 The eye groups before it reads.
Brain Science40 Unlock it, or don't lose it — the two ways to word the same nudge.
Brain Science41 You've already come this far.
Brain Science42 They decide you're legit before they read a word.
Brain Science43 Make them do a little of the work
Growth44 The number gets better; the thing gets worse.
Brain Science45 The reminder that works names a moment, not a task.
Brain Science46 Scarce and urgent are not the same word.
Brain Science47 The number you pre-fill is the number you'll get back.
Brain Science48 Give them something before you ask for anything
Tech49 You can't just change the table
Brain Science50 Let them make the first move themselves
Brain Science51 The badge that can never reach zero
Brain Science52 A picture is worth a paragraph you'll never read
Brain Science53 Build for the four-slot brain
Brain Science54 The red dot always wins the wrong fight
Tech55 You can't fix what you can't ask
Tech56 Evals Are the Unit Tests of the AI Era
Brain Science57 The center of the row isn't neutral.
Brain Science58 Your users can't tell which screen the feeling came from.
Tech59 A queue is a loan, not a fix
Brain Science60 How far away is what you're asking for?
Brain Science61 The Magic Is in the Defaults Nobody Notices
Brain Science62 Don't think about losing your work
Brain Science63 "Just Add a Setting" Is Where Products Go to Die
Brain Science64 Onboarding is a memory of a day that hasn't happened yet
Brain Science65 The 'aha moment' is a real event in the brain — and you can't script it
Tech66 Everything you cache is a bet that the world will hold still
Growth67 Distribution Is a Feature You Design, Not a Channel You Buy
Brain Science68 The smaller scoop that feels like more
Brain Science69 Your users are quietly outsourcing their memory to you
Brain Science70 The best loading screen tells you what's coming
Brain Science71 The First Ten Minutes Decide the Next Ten Months
Growth72 Vanity Metrics Are Comfort Food
Building73 Scope is a moral choice, not a planning one
Brain Science74 Push them and they push back
Building75 The Demo That Lies
Brain Science76 The Monday effect: why a nudge lands better on a fresh start
Tech77 Don't tear down the fence until you know why it's there
Brain Science78 The small flaw that makes them trust you more
Building79 Why "Talk to Users" Is the Advice Everyone Nods At and No One Follows
Brain Science80 Give them a head start they didn't earn
Tech81 Undo is the most underrated feature you can build
Tech82 Your architecture is your org chart
Brain Science83 Latency is an emotion, not a number
Building84 The riskiest assumption is the one nobody will say out loud
Brain Science85 Why 'free today' beats 'cheaper forever'
Brain Science86 Your users won't notice you changed anything
Growth87 Make the product do the marketing
Brain Science88 The data your users made is worth more to them than it is to you
Brain Science89 When you remove a feature, complaints spike before they settle — that's an extinction burst
Brain Science90 Pull-to-refresh is a slot machine — build it on purpose, or don't build it
Growth91 Retention is the only growth that compounds
Building92 Your roadmap is a list of guesses wearing a suit
Brain Science93 Your interface should feel a little familiar before it earns the right to feel new
Brain Science94 A good empty state makes a promise, not an explanation
Brain Science95 Big and close: the physics hiding in your primary button
Building96 Ship the embarrassing version
Tech97 Calibrated confidence: why AI products live or die on knowing when they don't know
Brain Science98 The one button that shouldn't match the others
Brain Science99 Your first ask should be almost insultingly small
Brain Science100 Your interface should confirm a guess your user already made
Brain Science101 The last step of your signup is where you put your easiest decision, not your hardest
Tech102 Every abstraction leaks. The skill is choosing which leaks you'll live with.
Brain Science103 How many choices belong on an empty screen?
Brain Science104 What 'join 10,000 builders' actually does to a hesitant brain
Brain Science105 The half-finished thing your users can't stop thinking about
Brain Science106 The price you show first decides what 'expensive' means
Brain Science107 Onboarding is applied memory science — you're fighting the forgetting curve
Brain Science108 The feature you can't cut is the one your brain already owns
Tech109 Your stack is a liability, not an asset
Building110 The cold-start problem is a people problem
Brain Science111 Dopamine Is a Bet, Not a Reward
Brain Science112 You Can't Make Every Moment Good. Engineer Two.
Building113 Most early products die of comfort, not competition
Building114 Taste is a moat: why the best builders can't fully explain their decisions
Brain Science115 
