When you state your beliefs with absolute certainty (e.g., "Product A will definitely outsell Product B"), you leave no room for nuance. If you are proven wrong, your ego suffers a blow, often leading to defensive rationalization.
You never know exactly what cards your competitors, market forces, or peers are holding.
Most people approach life decisions as if they are playing chess. They assume that if they plan perfectly, they will achieve a perfect outcome. When a bad result happens, they assume they made a bad choice.
Our brains are wired to protect our egos, which severely damages our decision-making capabilities. Duke highlights two primary biases we must actively fight: Self-Serving Bias thinking in bets annie duke pdf
"The employee quit after six months; I am terrible at interviewing."
If you want to dive deeper into optimizing your mental models, let me know:
: Even if you play your hand perfectly, a bad card on the river can ruin your chances. When you state your beliefs with absolute certainty (e
窶廬窶冦 70% confident that X will happen.窶�
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Traditional decision-making often relies on a binary approach, where we view our choices as either right or wrong, good or bad. This approach can lead to a fixed mindset, causing us to become overly attached to our decisions and resistant to changing our minds. Moreover, it can also lead to a lack of accountability, as we often attribute the outcomes of our decisions to luck rather than the quality of our thinking. Most people approach life decisions as if they
A CEO launches a risky product line without market research. By pure luck, a viral trend makes it a massive success. Resulting causes the board to praise the CEO's genius, ignoring the reckless process.
Duke borrows from Gary Klein窶冱 窶徘remortem窶� concept: before a project starts, imagine it has failed catastrophically. Then work backwards to find the causes. This surfaces risks that optimistic planning misses.
| Chess | Poker | |--------|-------| | Perfect information | Hidden information | | Deterministic | Probabilistic | | One right move | Multiple possible outcomes | | You can 窶徭olve窶� it | You can only improve your edge |
Shift from thinking "I am right" to "I am 80% sure". Key Takeaways: How to Make Better Decisions
We are all familiar with a postmortem窶蚤nalyzing why a project failed after the damage is done. A happens before the project even launches. Gather your team and ask: "Imagine we are one year in the future, and this project has failed catastrophically. What went wrong?" This exercise flushes out hidden risks, silences forced optimism, and allows you to build guardrails against foreseeable disasters. 2. Backcasting