Random Input
- Typical duration:
- 20m
A lateral thinking technique that introduces a completely random stimulus — a word, image, or object — into the ideation process to force unexpected connections and break habitual thinking.
Purpose
Random Input disrupts habitual thinking patterns by introducing an unrelated stimulus into the creative process. The brain is a pattern-making machine — given any random word or image alongside a problem, it will find connections. These forced connections often lead to surprising, high-quality ideas that conventional brainstorming cannot reach.
At a glance
- Group size: 3–15
- Duration: 20 minutes
- Difficulty: Low
- Facilitation style: Facilitator provides random stimuli; teams ideate
- Setting: Any workshop room
How to run
- State the challenge (2 min): Write the problem on the board.
- Introduce a random word (1 min): Open a dictionary, use a random word generator, or draw from a prepared deck. Reveal the word. E.g., "umbrella", "volcano", "kindergarten."
- List associations (5 min): Brainstorm everything the random word makes you think of: properties, functions, emotions, contexts, related objects.
- Connect to the challenge (8 min): For each association, force a connection to the problem. "Umbrella = protection from above. How could we protect users from information overload?"
- Select ideas (4 min): Review all forced connections. Star the 2–3 most promising ideas.
Materials needed
- Random word cards, dictionary, or random word generator app
- Sticky notes and markers
- Whiteboard for the challenge statement
- Timer
Pitfalls & common mistakes
- Choosing a "relevant" word: The word must be random. Choosing something related defeats the purpose.
- Giving up too quickly: "I can’t connect this" means you need to push harder. Every word connects if you try.
- Only one random input: Run 2–3 rounds with different words for richer results.
- Stopping at the association list: The value is in step 4 — the forced connection. Don’t skip it.
Inclusion & accessibility
- Use words in the team’s primary language.
- Offer image cards as an alternative for visual thinkers.
- Allow individual brainstorming time before group sharing.
Variations
- Random image: Use a random photograph instead of a word.
- Random object: Bring a physical object (a toy, a kitchen tool) and explore its properties.
- Random person: Ask "How would [random famous person] solve this?"
When NOT to use this
- When the team needs convergence, not more divergent ideas.
- When stakeholders would find the approach unserious (without prior framing).
- When the challenge requires domain-specific expertise that random connections cannot provide.
Source & further reading
- de Bono, Edward — *Lateral Thinking* (Harper & Row, 1970)
- de Bono, Edward — *Serious Creativity* (HarperBusiness, 1992)
- Michalko, Michael — *Thinkertoys* (Ten Speed Press, 2006)
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