The Art of Acting Clearly
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The Art of Acting Clearly

Rolf Dobelli

3872 learners

In The Art of Acting Clearly, bestselling author Rolf Dobelli demystifies the hidden cognitive biases that distort our daily decisions—from trivial shopping picks to high-stakes business and career moves. Drawing on decades of behavioral psychology research, real-world case studies, and eye-opening experiments, Dobelli breaks down over 30 common mental traps: how choice fatigue drains willpower and leads judges to deny parole at day’s end; why we irrationally reject a Hitler-owned sweater despite it being chemically clean; how the planning fallacy made Sydney Opera House cost 14x its budget and take 10 years longer than planned. More than just a catalog of biases, this book delivers actionable strategies to outsmart these pitfalls: from using external benchmarks to avoid overoptimism, to writing concrete plans to quiet the Zeigarnik Effect’s nagging reminders. Whether you’re a manager, investor, or simply someone wanting to make clearer, more rational choices, this guide equips you to cut through mental noise and act with intentionality.

Cognitive BiasesZeigarnik Effectdecision-makingInformation OverloadChoice Fatigue
Concept

Planning Fallacy

The planning fallacy is underestimating task time. People often think tasks take less time than they do, leading to stress and delays.

Cognitive Biastime managementplanning
Concept

What is Planning Fallacy

It's the common mistake of underestimating time, cost and risk, while overestimating project benefits, even when you know past similar plans ended up failing.

Cognitive BiasplanningProject Management
Scenario

Sydney Opera House Delay

The Sydney Opera House was supposed to finish in 1963 with a $7 million budget, but it finally opened in 1973 and cost 14 times the original planned budget.

Project ManagementPlanning FallacyReal Case
Method

Beat Planning Fallacy Tips

1. Check how long similar past projects actually took, not your ideal timeline. 2. Hold a pre-mortem meeting to imagine project failure and list all hidden risks.

Project ManagementRisk ControlPlanning Method
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