Project Hindsight

You keep making the same mistakes because your brain keeps editing the story.

Project Hindsight is a decision journal with an unavoidable review loop. Capture your reasoning before your brain polishes it. Come back when reality has a verdict. Get measurably better at deciding.

Start freeSee how it works

Inspired by frameworks from Daniel Kahneman, Shane Parrish, and Ray Dalio.

You can’t learn from decisions you can’t remember making.

Hindsight bias rewrites your reasoning the moment the outcome arrives.

Most journals fail because nobody reads them six months later.

How it works

  1. 01

    Capture the decision in 3 minutes.

    Type or dictate. Structured prompts make sure you commit to a forecast, list alternatives, and note how you feel. The AI challenges vagueness but never writes for you.

  2. 02

    Set a review date.

    Choose when reality will have the verdict: one week, one month, six months. We hold onto it. You forget about it.

  3. 03

    Review when reminded.

    We email you on the day. A guided five-minute review scores your forecast against what actually happened, surfaces what you’d do differently, and extracts reusable principles.

You don’t have to take our word for it. Watch your own judgment improve.

Every decision you review earns a Brier score, a standard measure of forecast accuracy. As your predictions get sharper, the score falls. Hindsight also breaks calibration out by decision domain, so you learn where to trust your gut and where to slow down.

Brier score

0.18

Lower is better.

Hiring

Well-calibrated

Revenue

Consistent overconfidence

Product

Slight underconfidence

This is the real Calibration dashboard, shown with sample data. Yours fills in as you review decisions. Your forecasts against reality, scored.

Who it’s for

  • Founders and operators whose output is decisions
  • Investors and analysts who need to separate skill from luck
  • Executives building a personal track record
  • Teams who want believability-weighted decision-making(coming soon)

Simple pricing.

The full decision journal is free. The intelligence layer is invite-only while we get it right.

Free

$0

Everything you need to make better decisions. No credit card, no trial clock.

  • Three decisions
  • Structured capture: forecasts, alternatives, state of mind
  • The full review loop with email reminders
  • Calibration dashboard and Brier scoring
  • Your data is yours. Export anytime
Start free

Pro

$9/mo

The intelligence layer: voice capture and pattern insights across your history.

  • Everything in Free
  • Voice capture with automatic transcription
  • Pattern insights across your decisions
  • Principles extracted from your reviews
  • First look at new intelligence features

Invite-only for now. Leave your email and we’ll tell you when it opens.

FAQ

How is this different from Notion or a notebook?
Notion doesn’t wake you up in six months. The review loop is the point.
Will AI read my decisions?
AI assists you in real time: challenging vagueness, transcribing voice. Your content isn’t used to train models. Details in our privacy policy.
Can I use this with a team?
Solo for now. Team features like believability-weighting and group forecasts are on the roadmap.
What frameworks does this draw from?
Daniel Kahneman’s original decision journal concept, Shane Parrish’s Farnam Street template, Ray Dalio’s Principles, and Philip Tetlock’s work on superforecasting.
Who built this?
Project Hindsight is being built by Brian Schmitt.