Generating Ideas on Demand (Divergent Thinking, SCAMPER, Brainstorming)
Most people think ideas just "arrive" if you're lucky or talented. They don't. Ideas are made, on purpose, using tools you can learn in an afternoon. This chapter hands you those tools: how to switch your brain into "make many ideas" mode, a checklist (SCAMPER) that forces fresh angles, and a 15-minute idea session you can run today. If you've ever stared at a blank page and felt nothing, this is the fix.
The one rule that changes everything: separate making from judging
Your brain has two very different jobs. Let's name them plainly.
- Divergent thinking
- Making many different ideas. Wide, fast, no judging. "What are all the things this could be?"
- Convergent thinking
- Picking the best idea. Narrow, careful, judging allowed. "Which of these is actually good?"
The single biggest mistake is doing both at once. You think of an idea, then instantly say "that's stupid," and the next idea never comes — because the judging part of your brain scares off the making part. Psychologist J.P. Guilford, who coined "divergent thinking" in the 1950s, showed these are distinct mental skills. They fight each other when used at the same moment.
WRONG (mixed): idea -> "bad" -> idea -> "bad" -> stuck
RIGHT (split): idea idea idea idea idea | then judge
\____ DIVERGE ____/ CONVERGE
Quantity before quality: train the idea muscle
Here is a counter-intuitive truth from creativity research: if you want good ideas, aim for many ideas. Studies of brainstorming find that the more ideas a person produces, the more likely the best one is excellent. Quality rides on the back of quantity. Your first three ideas are usually obvious; the interesting ones show up at idea number eight or twelve, after you've cleared out the clichés.
Writer James Altucher calls this the "idea muscle." Like any muscle, it weakens without use and strengthens with daily reps. His practice: write 10 ideas every day, on any topic — 10 ways to improve your morning, 10 business ideas, 10 names for a cat. The topic barely matters. The point is the rep. He claims the muscle starts to wither in about two weeks without practice and rebuilds in about six months of daily work. You don't have to believe the exact numbers; the principle is sound and easy to test on yourself.
SCAMPER: a checklist that forces new angles
When you stare at a problem, your mind keeps circling the same groove. SCAMPER breaks the groove by asking seven specific questions. It was organised by Bob Eberle from a checklist by advertising thinker Alex Osborn (who also gave us "brainstorming"). Each letter is a verb you apply to your subject.
| Letter | Question to ask |
|---|---|
| S — Substitute | What can I swap out? Different material, person, place, ingredient? |
| C — Combine | What if I merge it with something else? Two features, two products, two steps? |
| A — Adapt | What works elsewhere that I could copy here? Who else solved this? |
| M — Modify (Magnify/Minify) | What if I make it bigger, smaller, louder, slower, more frequent? |
| P — Put to other use | What else could this be used for? A new user, a new setting? |
| E — Eliminate | What can I remove? What if half of it were gone? |
| R — Reverse (Rearrange) | What if I flip the order, or do the opposite? |
- Substitute: make it from cooled lava rock that keeps heat longer.
- Combine: mug + lid + tea infuser in one.
- Adapt: borrow the "spill-proof" valve from sports water bottles.
- Modify: giant 1-litre "no refills" mug for all-day work.
- Put to other use: a mug shaped to also hold pens when empty.
- Eliminate: remove the handle — a wrap-around sleeve instead.
- Reverse: a mug that cools drinks instead of keeping them hot.
SCAMPER works because it gives your working memory a handle to grab. Your working memory (the small mental workspace that holds a few things at once) can't search "everything." But it can answer one narrow question at a time. Each letter is a doorway your mind wouldn't have opened on its own.
"How might we…" — ask the question that opens doors
The way you phrase a problem decides what ideas are even possible. A closed question ("Should we lower the price?") allows only yes/no. An open question invites many answers. Designers use the phrase "How might we…" on purpose, and each word does work: How assumes there is a way, might says ideas can be imperfect, we makes it a team effort.
So before generating, rewrite your problem as one or more "How might we…" questions, broad enough to allow surprising answers but not so broad it's vague. "How might we make mornings less stressful?" beats both "How do we buy a better alarm clock?" (too narrow) and "How do we improve life?" (too vague).
Constraints spark creativity (the blank page is the enemy)
It feels backwards, but limits help. Total freedom ("think of anything") freezes people. A tight box ("a children's story using exactly these 5 words") gets ideas flowing, because the constraint gives your brain edges to push against. Dr. Seuss famously wrote Green Eggs and Ham on a bet that he couldn't do it in 50 different words — the limit produced a classic. When you're stuck, don't remove limits; add one: "Solve this with zero budget." "Solve it in one sentence." "Solve it for a 5-year-old."
Combine random inputs to force fresh connections
New ideas are usually old ideas combined. You can manufacture this on purpose: take your problem, then grab a random word (open a book, point), and force a link. Problem: "get more people to read my newsletter." Random word: "ladder." Force it: a newsletter that has visible "levels" readers climb, unlocking deeper content as they go. The random word jolts you out of the obvious groove — this ties straight to the connecting-ideas skills in this Part: creativity is largely recombination.
The 15-minute idea session (run this anytime)
- Frame (2 min): Write the problem as a "How might we…" question. Check it doesn't hide an answer.
- Diverge (7 min): Timer on. Aim for 15+ ideas, no judging at all. Wild ones welcome. If you stall, run SCAMPER's seven letters, or add a constraint, or throw in a random word.
- Rest (1 min): Step away — look out a window. This small pause lets your mind "incubate" and a fresh idea or two often pops up.
- Converge (4 min): Now judging is allowed. Star your top 3 by two filters: impact (how much it helps) and doable (how easily). Pick one to act on.
- Next step (1 min): Write the single smallest action for that idea. An idea with no next step is just a daydream.
Practice
- 10-a-day, 7 days: Each morning write 10 ideas on any prompt. Keep the lists. On day 7, reread day 1 — you'll see your later ideas are bolder. That visible progress is your idea muscle growing.
- SCAMPER a real object: Pick something on your desk. Generate one idea per letter (7 total) in under three minutes. Speed forces you past the obvious.
- Reframe drill: Take a problem you're chewing on. Write it three ways: too narrow, too vague, and a good "How might we…". Notice how the middle version unlocks more answers.
- Random-word jolt: Open any book, point at a word, and force-connect it to a goal you have. Write the link in one sentence, even if silly.