Pre-Mortem Analysis

Gary Klein's technique of imagining that a project has already failed, then working backward to identify the most likely causes. Unlike post-mortems (which analyze actual failure after the fact), pre-mortems harness prospective hindsight—the cognitive finding that people are significantly better at explaining past events than predicting future ones. By framing the failure as already having occurred ('it's six months from now and this project has failed—why?'), the pre-mortem liberates team members to voice concerns they might suppress during optimistic planning.

When to use it

Before launching projects, products, or strategies; when teams seem overconfident about a plan; when you need to surface risks that social dynamics are suppressing; when planning processes feel overly optimistic and lack genuine risk assessment.

How it can help

Before launching any significant initiative, gather the team and say: 'Imagine it's [future date] and this project has failed spectacularly. Write down the most likely reasons why.' Collect responses anonymously, then discuss. The power is in the framing: asking 'what could go wrong?' triggers defensive optimism; asking 'why did it fail?' triggers genuine analysis. Pre-mortems consistently surface risks that standard planning misses because they bypass the social pressure to be positive about plans everyone has invested in.