How to make better decisions
Introduction
Our lives are, to a large extent, the sum of our decisions. Who with, what to work on, what to prioritize, how to react. And still we decide mostly by eye, guided by intuition, haste or fear, with no method at all. The good news is that deciding well is a skill and, like any skill, it can be improved.
This isn't about turning every choice into an endless calculation — that paralyzes — but about knowing the traps that make us get things wrong and a handful of tools for thinking more clearly.
A good decision isn't one that turns out well. It's one that was well made given the information available.
Separate the decision from the outcome
This distinction, popularized by poker player Annie Duke, organizes everything else. In any decision under uncertainty there are two separate things: the quality of the process and the outcome, which also depends on chance.
A good decision can turn out badly and a bad one can turn out well. Judging yourself only by outcomes — what Duke calls resulting — teaches you false lessons: you abandon sound processes because they once failed, and repeat recklessness because it once worked.
The useful question after a decision isn't "was I right?" but "given what I knew then, would I decide the same way again?"
Your biases decide for you, if you let them
The mind isn't a logical machine but an organ full of shortcuts that usually work and sometimes mislead. Knowing the most common ones offers some protection:
Confirmation bias. We give more weight to what confirms what we already believed. Antidote: actively look for arguments against your preferred option, and ask what would have to be true for the other one to be right.
Loss aversion. Losing hurts more than gaining the same amount pleases, so we avoid reasonable risks. Antidote: evaluate by real value, not by fear of loss.
Anchoring. The first number we hear shapes the rest. Antidote: generate your own estimate before hearing theirs.
Overconfidence. We think we know more than we do. Antidote: ask what information you're missing.
Sunk cost. We continue because of what's already invested, not because of what's ahead. Antidote: if this didn't exist today, would you start it?
An honest warning: knowing about biases helps less than it seems. Debiasing research shows that awareness alone doesn't prevent them; procedural changes — checklists, criteria set in advance, an outside opinion — work better than good intentions.
Intuition and analysis: each in its place
We tend to set "follow your heart" against "think it through", but both work depending on context.
Intuition is reliable when there's plenty of experience in a stable environment with fast, clear feedback: a veteran firefighter, an emergency physician. In new or uncertain territory, or where results take years to show — investing, choosing a career — intuition is often wrong.
Practical rule: for repeated decisions inside your experience, trust instinct; for important, new or emotionally charged ones, slow down and analyze.
Tools for deciding better
1. Widen your options. Almost all bad decisions start from a binary framing: "should I do it or not?" Ask what else you could do. And a powerful variant: "if both these options disappeared, what would I do?"
2. Get emotional distance. What would you advise a good friend in your situation, or what will you think of this in ten years. Distance dissolves the noise of the moment.
3. Run a pre-mortem. Imagine you already decided and it went badly: why did it fail? Anticipating failure reveals risks that enthusiasm hides, and it's one of the best effort-to-value techniques available.
4. Define in advance what would change your mind. Decide which signals would indicate you were wrong. That way you correct in time instead of defending the error out of pride.
5. Distinguish one-way from two-way doors. If the decision is reversible, decide fast and learn from the attempt. Save deep analysis for the irreversible.
6. Write it down. Note the decision, the reasons and what you expect to happen. Reviewing months later shows you how you decide, which is the only way to improve the process.
7. Don't decide tired or heated. Fatigue and intense emotion measurably degrade judgment.
Beware analysis paralysis
More analysis isn't always better. Facing too many options we freeze and decide worse, or don't decide at all. For small, reversible things, decide fast: they don't deserve your energy. And remember that not deciding is also deciding, almost always in favor of inertia.
A simple rule for allocating effort: spend time in proportion to how irreversible the decision is and how long you'll live with it.
Common mistakes
Chasing the perfect decision. Under uncertainty it doesn't exist; what exists is good enough and made in time.
Asking only people who'll agree with you. Consult at least one person whose incentives differ from yours.
Confusing information with judgment. Past a certain point, more data only raises confidence, not accuracy.
Judging yourself by outcomes. The fastest route to learning the wrong lesson.
Conclusion
Deciding better isn't about always being right, but about reducing avoidable errors and genuinely learning from the ones you make. Start this week with the cheapest step: for the next decision that matters, write it down in three lines — what you're choosing, why, and what you expect — and set a reminder to reread it in three months. It's the only method that shows you how you decide, and without that, improving is impossible.
References
- Kahneman, D. (2011). Thinking, Fast and Slow. Farrar, Straus and Giroux.
- Heath, C., & Heath, D. (2013). Decisive: How to Make Better Choices in Life and Work. Crown Business.
- Klein, G. (1998). Sources of Power: How People Make Decisions. MIT Press.
- Duke, A. (2018). Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts. Portfolio.