Subconscious design system
The molecular pattern every surface obeys
Revealedwhat people
actually do
100%
Statedwhat surveys
catch
38%
Δwhat surveys miss.
what we measure.
62pp
Fig. 0 · illustrative · mean rank correlation · n=43 studies passing design filters · human ceiling 0.959 the red bar is what we add to surveys

say›do.

✱LLMs predict words. causl.io predicts actions, replicated blind against published human studies.

the name of the product
the move · the only move

revealed · preference.

Noun. The choice a person actually makes, under real budget, time, and alternative constraints. Not the choice they report. Not the choice they prefer in principle. The one they did.

statedcolumn one · what they say

"A dark, robust blend."

Source
Self-report, N=1,000 U.S. coffee drinkers
Method
Survey, open-ended · 62% match to behavior
Status
Flattering. Incorrect. Expensive.
the arrow stated → revealed
revealedcolumn two · what they do

They buy the caramel macchiato.

Source
Transaction data, Starbucks SKU mix 2003–2026
Method
Revealed preference · budget + menu constraint
Status
Inconvenient. Correct. Worth $38B.

Three companies the pattern built.

N = 3 · canonical · teach these first
01 ·
Coffee
"A dark, robust blend." — the average American man, to a focus-group moderator.
Caramel macchiato. Light, sweet, on ice. Ordered 2.1× per week.
$130BStarbucks market cap, built on the gap.
02 ·
Phones
"A phone booth on every corner." — the public, 2006, asked what they wanted next.
A rectangle of glass that replaces the phone booth, the camera, the map, and the wallet.
$3TApple. Built without asking.
03 ·
Horses
"Faster horses." — what people would have said, per Henry Ford, if he'd bothered to ask.
A four-wheeled machine that makes the horse obsolete.
15MModel Ts shipped. Horses retired.

The doctrine.

§1Every surface we ship is built of pairs. Left column stated. Right column revealed. If you can't draw the pair, you don't have the idea yet.
§2The left column is always italic, grey, and struck-through in red. Non-negotiable. Red is never decorative — it marks a lie.
§3The right column is always upright, black, and weighted. One word gets a highlight — never the whole sentence.
§4Between the two columns sits a causal arrow. Not a flourish. The arrow is the product. We don't sell data; we sell the arrow.
§5Every number gets a source, a method, and a status. Always in three lines of IBM Plex Mono, 9px, all-caps. The footnote is the proof.
§6On every page one thing is violently large and one thing is uncomfortably small. Kill the middle weight.
§7If it could have been made by a competitor, delete it. If it could have been made by a marketing AI, burn it.