Pick two unrelated concepts from different domains
Force combination: "What if we treated [A] like [B]?"
Explore emergent properties: What new capabilities appear?
Test boundaries: Where does the metaphor break?
Extract insight: What did we learn?
Example Collision
Problem: Complex distributed system with cascading failures
Collision: "What if we treated services like electrical circuits?"
Emergent properties:
Circuit breakers (disconnect on overload)
Fuses (one-time failure protection)
Ground faults (error isolation)
Load balancing (current distribution)
Where it works: Preventing cascade failures
Where it breaks: Circuits don't have retry logic
Insight gained: Failure isolation patterns from electrical engineering