What you tried
The guess, the holdout, the result.
Each test keeps what you guessed, who did not see it, and what happened.
Intelligence
What you learned stays. The next test starts smarter.
When a test ends, the reason stays in the workspace. Next week's letter and next week's test start from there. When someone leaves, the why does not leave with them.
No credit card to start.
Keep it
What worked last week is still here.
When a test has a clear result, you can keep it. Next week's letter and next week's test start from evidence you already trust.
Belief graph · live
IF/THENDEPENDSCONFLICTS12 beliefs
Belief updated
What you keep
A lesson you can test again, not a note in a wiki.
Flip the cards. This is the memory the products share.
How Monday changes
Last week’s win shows up in this week’s send.
A letter, a journey, and a site test can all update the same lesson. When a lesson goes stale, it shows up as work.
Your move
Keep the next lesson.
Start a test. When it ends, the why is still here.