Combine and build on others’ ideas
Treat every idea as a building block — the best ideas in a session are usually hybrids.
Key takeaways
- What it is: Treat every idea as a building block — the best ideas in a session are usually hybrids.
- Why it works: Combinatorial creativity (discussed more fully under the adjacent-possible concept) works by connecting existing concepts in new configurations. When participants actively listen for combination opportunities rather than waiting to deliver their own ideas, the group functions as a distributed memory system — each person’s idea triggers associations in others that neither would have reached independently.
- Evidence: Plausible mechanism, limited direct outcome data.
- Avoid: Building on an idea but pivoting away so completely that the connection is lost — "combining" works best when it names both parents explicitly.
Why it works
Combinatorial creativity (discussed more fully under the adjacent-possible concept) works by connecting existing concepts in new configurations. When participants actively listen for combination opportunities rather than waiting to deliver their own ideas, the group functions as a distributed memory system — each person’s idea triggers associations in others that neither would have reached independently.
How to do it
- 1After each idea, pause briefly and ask "Does this trigger anything for anyone else?"
- 2Keep a visible idea board so all ideas stay in sight — combinations require seeing both halves.
- 3Use prompts: "What if we combined [idea A] with [idea B]?"
- 4Mark hybrids distinctly — they often deserve extra development in the evaluation phase.
What the evidence says
MechanisticThe benefits of cognitive cross-stimulation in groups are real but modest in practice; most of the cross-stimulation benefit requires hearing others’ ideas while being in a generative state, which production blocking partially undermines.
Honest caveat: Cross-stimulation is a real mechanism, but it is most effective in brainwriting (written, parallel formats) where everyone can see all ideas simultaneously without waiting for turns.
Common mistake
Building on an idea but pivoting away so completely that the connection is lost — "combining" works best when it names both parents explicitly.
IX Coach surfaces connection prompts between your ideas during ideation, helping you spot hybrid possibilities you’d miss when reviewing the list alone.
Practice this with IX Coach →