Pre-Mortem Analysis¶

Why It Matters¶

Humans are overconfident in plans and predictions. We anchor on success scenarios and fail to imagine specific failure modes. "What could go wrong?" generates generic answers ("might not work"). "It's failed - what happened?" generates concrete failure stories that your mind can actually visualize and plan around. Pre-mortem corrects for planning fallacy and optimism bias by forcing realistic pessimism before commitment.

The Key Move¶

Gather your team or think independently. Say: "It's [time period] from now, and our project/decision has completely failed. It's a disaster. Take 5 minutes and write the story of how this failure happened." Collect all failure stories. Notice which failures appear multiple times (high-probability risks). For each: can we prevent it? Can we detect it early? Can we mitigate damage if it happens? Revise the plan accordingly.

Classic Application¶

Project management. Before launching a new product, assume it flopped. Teams generate: "Our target users didn't actually have the problem we thought they had," "Competitor launched similar product first," "Key team member quit mid-project," "We underestimated compliance requirements by 10x." Each failure mode gets a mitigation plan.

Surprising Application¶

Personal life decisions. Before accepting a job, assume you're miserable there in 6 months. Write the story: "The 'collaborative culture' they promised turned out to be endless meetings. My manager is territorial and takes credit for my work. The exciting project was canceled due to budget cuts." This surfaces risks hard to see through interview-stage optimism.

Failure Modes¶

Generating only preventable failures (some failures are unpreventable but preparable). Catastrophizing to the point of paralysis (every plan has failure modes). Using pre-mortem to justify pre-existing opposition rather than genuinely test a plan. Failing to act on pre-mortem insights - if you identify likely failures but don't change the plan, the exercise was wasted.

Go Deeper¶

Klein, "Performing a Project Premortem"; Kahneman, "Thinking, Fast and Slow" (Chapter 24)