Creative problem-solving is narrowing, not brainstorming

The sticky-note wall is our industry’s best-loved prop, and the energy of an ideation session is hard to argue against. A session produces volume, laughter and a feeling of creating together, and the feeling is real. The measured result is another matter. Social psychology has repeated the same experiment dozens of times over four decades, and the finding has held: the same people produce more ideas, and better ones, listing alone than brainstorming in a group.¹ This does not make working together useless. It means creativity does not live at the point in the process where we like to place it.

Volume was never the bottleneck

The promise of brainstorming rests on the assumption that ideas are scarce. That assumption was already questionable in 1987, when the phenomenon got a name and a measurement, and after AI it is absurd: a hundred plausible-sounding ideas now cost thirty seconds and nothing. Fluent copy went the same way. When the raw material becomes free, the value moves elsewhere.

It moves into the question. A list of a hundred ideas is worthless if nobody knows which question they are supposed to answer. An idea produced for a badly framed question is waste regardless of how good it is, which is why adding more ideation does not improve the outcome. It produces more answers to the wrong question, faster.

A constraint is material, not an obstacle

The research on constraints reports an uncomfortably symmetrical truth: a moderate amount of constraint produces more creative outcomes than full freedom, and only excessive constraint turns harmful.² Total freedom does not liberate. It paralyses, because without fixed surfaces no solution is better than any other.

Practitioners have always known this. A musician tunes the guitar to an open tuning so that six strings stop offering everything and start offering something. A designer cuts the palette to three colours. The limits of a manufacturing method tell you which shape is honest and which is wishful thinking. Reducing degrees of freedom does not shrink the outcome. It gives the outcome a frame against which every choice can be justified or thrown out.

The map before the optimisation

The fastest way to do the wrong thing efficiently is to optimise inside an inherited problem definition. That is why our order of work never changes: first the map, then the model, only then the optimisation. In the mapping phase the most interesting question is not what other options exist, but which of the constraints actually hold.

Who set this constraint, and do they still remember why?

The answer surprises more often than anyone likes to admit. Many a constraint treated as fixed turns out to be a decision somebody made years ago, in a different situation, for different reasons, whose rationale left the building with the last reorganisation. Dissolving a constraint like that opens solutions no amount of ideation would have found, because every idea was generated inside it.

What narrowing looks like in client work

In client work this means a good workshop does not open with what else could we do. It opens with how do we know this condition holds. A good framing question kills more ideas than the best ideation round generates, and that is precisely its value. Every door closed for a stated reason makes the remaining corridors brighter.

Once the question is framed correctly, the solution is often close to obvious, and it needs executing more than inventing. From the outside the result looks like a flash of insight. From inside the work it looks like what was left standing after everything else had been ruled out for cause.

A meeting can be diagnosed with one metric and no consultant: how many contributions open new options, and how many close options for a stated reason. If nothing ever closes, the room is not solving. It is collecting.

From words to done.

Sources

1. Diehl, M. & Stroebe, W., “Productivity Loss in Brainstorming Groups”, Journal of Personality and Social Psychology, 1987, and the meta-analysis by Mullen, B., Johnson, C. & Salas, E., Basic and Applied Social Psychology, 1991: across 20 studies, brainstorming groups produced fewer and weaker ideas than the same individuals working separately. https://homepages.se.edu/cvonbergen/files/2013/01/Productivity-Loss-In-Brainstorming_Toward-the-Solution-of-a-Riddle.pdf
2. Acar, O. A., Tarakci, M. & van Knippenberg, D., “Creativity and Innovation Under Constraints: A Cross-Disciplinary Integrative Review”, Journal of Management, 2019. https://journals.sagepub.com/doi/abs/10.1177/0149206318805832