Decide faster. Regret less. Live more.
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Tracking this reveals if you trust your own decisions over time.
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The science behind every decision you make
Your brain believes more information = better decision. It doesn't. Research by Barry Schwartz (The Paradox of Choice) shows that after a threshold, more options cause worse outcomes and more regret — not better ones.
Kahneman & Tversky's Prospect Theory: losses hurt ~2.5× more than equivalent gains feel good. This asymmetry makes your brain overweight downside risk and stall on decisions where the upside is actually larger.
The brain treats the current state as the reference point and any change as a loss. This is why people stay in bad jobs, bad relationships, and bad habits — change requires overcoming a psychological penalty that doesn't exist in reality.
Anticipated regret is almost always worse than experienced regret. Studies show humans are far better at rationalising outcomes than they predict — we adapt, reframe, and move on. We call this the "psychological immune system."
The famous Jam Study (Iyengar & Lepper, 2000): when shoppers saw 24 jam options, only 3% bought. With 6 options, 30% bought. More choice = less action. Every option you keep open is cognitive overhead blocking commitment.
You seek info that confirms what you already want to do. Your "research" is often just rationalisation.
You overweight recent, vivid, or emotional events. A friend's bad experience makes you avoid something statistically safe.
You keep investing in something because of what you've already put in — not its future value. Past investment is gone regardless of what you decide now.
93% of drivers think they're above average. Most people estimate 80% confidence intervals that are only right ~50% of the time.
The first number or option you encounter disproportionately shapes your thinking — even when it's arbitrary.
You defer to what others are doing when uncertain — even when those others are also uncertain and deferring to you.
Developed by psychologist Eric Schulman, the coin flip test doesn't decide for you — it reveals your pre-existing preference through your emotional reaction to the result.
When the coin lands, your gut immediately feels relief or disappointment. That gut reaction is your real answer — your brain knew all along.
Benjamin Franklin invented the "moral algebra" version of this in 1772. The act of writing pros and cons isn't just analysis — it's a cognitive offloading exercise that frees working memory and reveals which side you instinctively populate first.
Pro tip: Weight your cons. One showstopper con beats five minor pros. If you can't think of any cons, you're in confirmation bias territory.
Created by Suzy Welch, 10-10-10 uses temporal distancing — a proven technique where psychologically stepping forward in time reduces the emotional intensity of the present moment and activates more rational System 2 thinking.
The 10-year question is the most powerful: almost nothing feels as catastrophic in 10 years as it does right now. This single question defeats loss aversion for most decisions.
Developed by cognitive psychologist Gary Klein, the pre-mortem is prospective hindsight — mentally travelling to a future where the decision failed and working backwards to find out why.
Research shows this technique increases identification of reasons for future failure by 30% compared to standard risk analysis. It bypasses optimism bias by making failure the assumed starting point.
Nobel Prize winner Herbert Simon coined "satisficing" (satisfy + suffice) — the strategy of choosing the first option that meets your minimum acceptable criteria, rather than searching for the theoretical optimum.
Maximisers search exhaustively for the best option. Research shows they make objectively better choices — but feel worse about them. Satisficers set a "good enough" threshold, decide faster, and report higher life satisfaction.
Jeff Bezos divides all decisions into Type 1 (one-way doors — hard/impossible to reverse) and Type 2 (two-way doors — easily reversible).
The trap: Most people treat Type 2 decisions like Type 1 — applying heavyweight analysis to things they can simply undo if wrong. This is where most decision paralysis lives.
Bezos's internal Amazon rule: if you have 70% of the information you wish you had, decide. Waiting for 90% means you're too slow. Most of the last 30% of information changes nothing — it's just anxiety management dressed as diligence.
Jeff Bezos used this to decide to leave his Wall Street job and start Amazon: "I wanted to project myself forward to age 80 and look back at my life. I knew that I would hardly regret having tried and failed. But I knew that I might intensely regret not having tried at all."
Regret of inaction consistently outranks regret of action in long-term studies. People say "I wish I had tried" far more often than "I wish I hadn't."
Speed is the wrong goal for these situations:
% of your reviewed decisions rated "Great." This is your primary growth metric.
Your confidence rating at lock-in vs your outcome rating later reveals your calibration — how accurately you assess your own decision quality in real time.
Based on Roy Baumeister's ego depletion research: willpower and decision quality draw from the same cognitive resource pool. After ~5 significant decisions in a day, that pool runs low.
The Israeli Parole Board Study: judges granted parole to 65% of prisoners in the morning — dropping to near 0% before breaks, then resetting. Same judges, same cases, different time of day.
Streak measures consistency of your practice habit — not the quality of individual decisions. A 30-day streak means you've built a decision muscle. Like any muscle, it needs consistent use to develop.
Average Time should trend down as your quality improves — the mark of an expert decision-maker is making high-quality decisions faster, not slower. If your avg time is rising, you may be developing perfectionism rather than skill.
Decision quality peaks in the first 2–4 hours after waking, before decision fatigue accumulates. Schedule your hardest decisions before noon. Use this window for HIGH importance decisions only.
The Practice Mode trains your decisiveness reflex through low-stakes repetition. The neural pathway for fast commitment is the same regardless of decision size — training it on small decisions carries over to large ones.
Decision fatigue is cumulative. Batching small decisions (what to eat, what to wear, what to respond to) into a single 10-minute session costs far less cognitive energy than spreading them throughout the day.
Sleep deprivation impairs the prefrontal cortex — the rational decision-making centre — as severely as being legally drunk. If you're tired, your brain overweights immediate reward and underweights long-term consequence.
James Clear's research shows that reflection without recording is almost useless — your brain selectively remembers past decisions to match your current self-image. The journal + weekly review creates an honest external record that bypasses this distortion.
Before every decision, ask: "What is the minimum this option needs to deliver for me to be satisfied?" This is Herbert Simon's satisficing threshold. Once an option clears it — commit. Stop optimising.
Reflect. Rate. Improve.