Brain Science

Real brain science, decoded into the 0→1 product decisions builders actually make — memory, attention, motivation, and the machinery underneath them, applied to what you ship. This is the flagship pillar: the neuroscience of building things people can't put down.

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Brain Science

The whole system looks like it's learning. One part actually is.

Your brain doesn't gate what comes in. It gates what gets out.

Two things that feel the same will be remembered as one.

You don't copy the click. You catch the goal.

The cue is doing the work your motivation won't.

The near-miss your brain scores as a win

You can't be grateful for the breach that didn't happen.

Ask them for a small favor. They'll like you more for it.

Free isn't a cheaper price. It's a different feeling.

Your users mean it. They still won't do it.

A success licenses a lapse.

They'll forgive a person one mistake. They won't forgive the model.

Ask them to pick a mode, and they'll pick the wrong one.

The system that never says "I'm not sure."

They feel it before they weigh it.

Smuggle the reward into the chore.

The pain of switching is mostly a forecast.

The safety net changes how they walk.

A visible reason isn't the real reason.

Simple to look at isn't the same as easy to think

How big is one "done"?

When the agent acts for you, your brain stops calling it yours

The lapse isn't the problem. The collapse is.

Win them back on the slope, not at the bottom

An output you can't check is work you didn't save

They only ask the real question in private

They only remember what was about them

The best memory is mostly forgetting

The watch nobody can keep

Attention is a mute button, not a spotlight

The most important screen is the one right after "yes."

The agent got cheaper. Your trust didn't.

The 48-hour high

The step they skip is the one after they win

Don't pay people to do what they already love.

New is a reward before it's useful

Remembering to remember is the part that breaks

The name they've already heard wins the tie

An interrupted task wants to finish itself

Up to four, the eye just knows

A part of them is still on the last screen

You can't un-know your own product

Tomorrow's effort is always on sale

Design the ending, not the average

You get one "look here" every half second

The first path you teach becomes the only one they see

What you teach all at once, they forget all at once

One unit is however big you make it

People spread evenly across whatever buckets you give them

Stop trusting what users say they'll do

The caricature beats the photograph

Ninety out of a hundred beats nine out of ten

Warm water feels hot to a cold hand

Why showing the work beats the instant answer

How long did the last one take?

The statistic that makes your testimonial worse

Your points system might be lowering engagement

Your users think they're finished changing. They're not.

The feature in focus always looks bigger than it is

The plan nobody buys is doing the selling

Paying hurts — so decide where to put the hurt

The name that's easier to say gets the benefit of the doubt

Your best testimonial looks better with company

Adding a feature can make your product look worth less

How much better before anyone notices

You love what you helped build — and so will they

Don't make them remember what you could just show

The pretty version gets graded on a curve

The name your product is borrowing

One thing done conspicuously well makes the rest look better than it is.

The eye groups before it reads.

Unlock it, or don't lose it — the two ways to word the same nudge.

You've already come this far.

They decide you're legit before they read a word.

Make them do a little of the work

The reminder that works names a moment, not a task.

Scarce and urgent are not the same word.

The number you pre-fill is the number you'll get back.

Give them something before you ask for anything