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Essentialism Mastery Assessment

Test your grasp of the 90% rule, graceful refusal, sunk cost elimination, and bottleneck subtraction.

Question 1 of 4
What is the core premise of the '90 Percent Rule' in Essentialism?
Explanation: The 90% Rule forces extreme selectivity: anything that isn't a definitive, enthusiastic yes must be an immediate no.
Question 2 of 4
How does the 'Paradox of Success' undermine high-performing individuals?
Explanation: Success naturally generates distracting options. Without ruthless pruning, those options dilute your core advantage.
Question 3 of 4
What is the recommended buffer to add to timeline estimates and schedules?
Explanation: Adding a 50% buffer absorbs inevitable delays and unexpected obstacles without triggering a crisis.
Question 4 of 4
What question helps eliminate Sunk Cost Bias when evaluating an existing project?
Explanation: Evaluating an initiative from a zero-base perspective removes emotional attachment to past unrecoverable costs.