Decision-making lenses
Find what you might be missing.
These twelve decision-making lenses help you look again at what feels unclear, stuck, or too easily accepted. Start with the perspective most likely to reveal a useful question about evidence, assumptions, people, incentives, risk, or alternatives. Each lens has a purpose and a boundary.
You do not need twelve lenses for every decision. Choose the one that could change the next step.
Start with your situation
Where are you stuck?
Choose the closest description. See what to bring, what the tool can reveal, and a concrete example.
A starting point for your judgment. You can explore another route at any time.
Neither option feels right.
Step back to the larger goal.
Suggested tool · Ladder of goals
- Bring this
- The choice you are considering, what it should achieve, and the limits you must respect.
- Look for this
- A clearer objective and other routes worth comparing.
Instead of “Which CRM should we buy?”, ask “How could we stop losing qualified leads?”
See a reframing exampleWe disagree and cannot move forward.
Separate the demands from the needs.
Suggested tool · Evaporating Cloud / Split the contradiction
- Bring this
- What each side wants to do, what each side needs to protect, and the goal you share.
- Look for this
- An assumption to test and a possible option that serves both needs.
A launch-versus-delay argument can become a question about a safe, limited release.
Walk through the conflictThe same problem keeps returning.
Look for the constraint behind the symptoms.
Suggested tool · Constraint lens / Leverage point
- Bring this
- What keeps happening, what you have tried, and where work waits or breaks down.
- Look for this
- A suspected bottleneck and a focused check before another broad fix.
More support staff may not fix a failed onboarding handoff.
Explore the leverage-point toolEveryone agrees. What are we missing?
Hear independent views before discussion.
Suggested tool · Independent team input
- Bring this
- The same situation, evidence, and question for each contributor—before revealing other views.
- Look for this
- Separate observations, concerns, and alternatives to compare after reveal.
Ask each person what could change their view before the most senior person states a preference.
See how independent input worksWe cannot afford to get this wrong.
Examine the downside and bound the exposure.
Suggested tool · Pre-mortem / The smallest step
- Bring this
- The proposed move, what failure would cost, and what you could safely test first.
- Look for this
- Failure scenarios, early warning signs, and a smaller test with stop conditions.
Test with a limited cohort before committing the whole company. If the downside remains unacceptable, stop or choose another route.
Explore the pre-mortem lensHow to use a lens
Start with the part you cannot yet see clearly.
One relevant question can reveal a different explanation, a testable prediction, or an option you had not considered. You do not need to work through every lens.
Choose the lens that matches the situation. Read its boundary as carefully as its question. Then write what it reveals into the case as evidence, interpretation, assumption, or a next check. A fresh perspective is something to examine, not an automatic answer.
The lens library
Twelve ways to take a second look.
Each lens below names the signal that calls for it, the question to ask, what the question can reveal, and where it can mislead.
01 The forecast is built only from inside this case.Outside view What usually happened in genuinely similar cases?
Step outside the story of uniqueness and find a comparable reference class.
A number is not a base rate without a defined class, denominator, sample size, source, and date.
Compare the timelines and conversion rates of ten genuinely similar launches.
02 “Everyone confirms it,” but the sources may depend on one another.Provenance and independence How many independent sources are here?
Separate repeated reports from independent evidence and trace claims toward their origin.
Five accounts repeating one report are not five independent observations.
Trace each confident statement back to first-hand evidence, a primary source, or a repeated claim.
03 Behaviour is being explained mainly by personality or stated intent.Incentives What behaviour is rational under the incentives?
Look at rewards, penalties, status, safety, convenience, and constraints before settling on a character story.
Incentives suggest plausible moves; they do not prove what a person will do.
Ask what changes for each actor if option A is chosen instead of option B.
05 One explanation became “the truth” too quickly.Second hypothesis What other explanation fits the observations?
Create a materially different causal account before acting on the first story.
A useful alternative must predict something different, not merely rename the same explanation.
Write two explanations and one observable result that should differ between them.
06 Two competing maps of the situation remain plausible.The fork Which observation would differ under A versus B?
Find the smallest discriminating observation before making a larger commitment.
Prefer a test whose result can actually change the decision.
Define the evidence that would favour demand failure over execution failure.
07 The choice has collapsed into yes or no.The ban If this option were unavailable, what would we do tomorrow?
Break the hidden assumption that the current option set is complete.
Generating alternatives does not establish that they are feasible or valuable.
Temporarily remove the favoured option and produce two executable substitutes.
08 People are expected to accept a “better” option automatically.Friction What must they change, lose, or do extra even if the result is better?
Expose switching costs, habits, coordination work, and operating burdens.
A superior outcome can still fail when the transition cost is ignored.
Map the first week of changed behaviour, not only the promised end state.
09 The plan looks smooth and risks remain generic.Pre-mortem A year has passed and this failed. What happened?
Convert optimism into concrete failure mechanisms, early warnings, and preventive action.
Do not let it become an unranked list of fears or a reason for paralysis.
Name the three likeliest failure mechanisms and the earliest signal for each.
10 Effort is spread thinly while the same problem keeps returning.The constraint What limits the throughput of the whole system?
Find the bottleneck or leverage point before optimising every visible part.
Not every system has one stable constraint; verify that the candidate truly limits the whole.
Ask whether replacing a person while keeping the structure would reproduce the same result.
11 The position remains unchanged as new information arrives.Refutation What event, threshold, or date would change your mind?
Turn a defended belief into a claim that reality can test.
The falsifier must be observable and set before the outcome is known.
State the metric and deadline that would trigger reconsideration.
12 The decision has effectively been made and the analysis is defending it.Reverse test What must be true for this decision to turn out well?
Expose necessary conditions and identify the most fragile assumption.
Necessary conditions are not guarantees; rank them by uncertainty and impact.
List three conditions for success, then test the least supported one first.
From perspective to practice
A useful perspective changes what you can ask, test, or do.
Look for a concrete next move: a source to check, an assumption to test, or an alternative to compare. Applying a lens and returning to the outcome is how the practice connects with real decisions.
Questions, answered
What people usually want to know.
What is a decision-making lens?
A decision-making lens is a focused question used to inspect a specific weakness in a case, such as source dependence, hidden assumptions, incentives, or an untested forecast.
Should every lens be used on every decision?
No. Applying every lens creates noise. Start with the visible gap or failure signal, then choose the smallest question capable of changing the decision.
Can a lens prove that an explanation is correct?
No. A lens generates a stronger hypothesis or test. Evidence from the situation must still confirm, weaken, or refute it.
For your leadership team
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See the platform in action, discuss an organization license, and identify an initial decision your team can work through.
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