a decision journal that grades you
keep score of your own judgment
Log decisions the moment you make them — with your reasoning and a confidence score. Brier reminds you when it’s time to check what actually happened.
the problem
how it works
decide. wait. find out who you are.
log the decision
What you decided, why, what you expect to happen — and how confident you are, as a number. Two minutes, while your reasoning is still honest.
we hold you to it
Pick when to check back — a week, a quarter, a year. When the date arrives, Brier emails you. No willpower required.
grade it. see the pattern.
Did it go as expected? Over months, your calibration curve emerges: where your gut is reliable, and where it flatters you.
why “brier”
in 1950, Glenn Brier invented the score that separates forecasters from storytellers.
The Brier score is how meteorologists, intelligence analysts, and superforecasters are graded: not on whether they sound confident, but on whether their confidence matches reality. We named the journal after it. That’s the standard your decisions get held to — quietly, privately, over time.
built for the follow-through
—the calibration curve
The chart most people never get to see about themselves: stated confidence plotted against how often you were actually right.
—reminders that arrive years later
The hard part of a decision journal is the follow-through. A quiet email lands exactly when a decision is due for grading.
—your reasoning, preserved
Hindsight bias rewrites memory. The journal keeps the version of you that decided — so the review grades the real reasoning, not the edited one.
—private, portable
Your entries belong to you. Row-level security in the database, one-click JSON export, no analytics on your content.
the next call you make is data.
Free while in beta. Two minutes to log your first decision.
start your record