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.

Brier score

0.18

Lower is better.

Hiring

Well-calibrated

Revenue

Consistent overconfidence

Product

Slight underconfidence

Real product. Real data. No fake testimonials.

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)

Free while we build.

Project Hindsight is in early access. No credit card. All features included. We’ll introduce paid plans later, with generous grandfathering for early users.

Start free

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 — believability-weighting, 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 at Surefoot. More details to come.