Reverse Brainstorm

Purpose

Reverse Brainstorming tackles creative blocks by inverting the challenge. Rather than asking "How do we improve X?", you ask "How do we make X as bad as possible?" The absurdity lowers inhibitions and — once you flip the worst ideas — reveals surprisingly actionable solutions.

At a glance

How to run

1. State the problem (2 min): Write the challenge clearly on a board.
2. Reverse it (1 min): Reframe: "How could we make this problem as bad as possible?"
3. Brainstorm the worst (8 min): Silent or open brainstorm of terrible ideas. Encourage extremes.
4. Share and enjoy (4 min): Read out the worst ideas. Laughter is expected.
5. Flip each idea (7 min): For each bad idea, ask "What is the opposite?" or "What would prevent this?" Capture the flipped solutions.
6. Select and refine (3 min): Identify the most promising flipped solutions.

Materials needed

• Whiteboard or flip chart
• Sticky notes and markers
• Two columns labelled "Worst Ideas" and "Flipped Solutions"

Pitfalls & common mistakes

• Not committing to the reversal: If people hold back, the flip yields bland solutions.
• Skipping the flip: Bad ideas are fun but useless without reversal.
• Offensive territory: Set a boundary: creative, not cruel.
• Overuse: It works best for stuck problems, not fresh ones.

Inclusion & accessibility

• The playful tone makes it inclusive for people who find traditional brainstorming intimidating.
• Offer silent writing for introverts.
• Be mindful of cultural norms — some cultures find deliberately bad ideas uncomfortable.

Variations

• Worst Possible Idea: A lighter version focused purely on the single worst idea.
• Reverse Reverse: After flipping, reverse the solutions again to stress-test them.
• Competitive Reverse: Teams compete for the most spectacularly bad idea.

When NOT to use this

• When the problem is emotionally charged — humour may feel inappropriate.
• When the team needs convergence, not divergence.
• When stakeholders expect a formal ideation process.

Source & further reading

• Charles S. Whiting, "Creative Thinking" (1958)
• Gamestorming: Reverse Brainstorm
• IDEO, *The Field Guide to Human-Centered Design*