National Geographic

Where Do New Ideas Come From?

In 1887, after achieving great fame and fortune for his invention of the phonograph, a machine that recorded sound, the acoustic telegraph, which transmitted more than one message at a time, and commercially viable light bulbs, Thomas Edison built a laboratory in West Orange, New Jersey. He recruited a team of talented scientists and engineers to help him further develop his famous inventions and, of course, to come up with new ones.

Edison’s team there invented a cotton picker, a snow compactor, and a way of using magnetized iron to generate electricity. But probably the most famous device to emerge from that lab was the kinetoscope, a machine for viewing motion pictures. How, exactly, the engineers designed this machine, and how much of the credit should be given to one of Edison’s assistants, William Kennedy Laurie Dickson, are fascinating stories. But as a writer who constantly struggles to come up with something new, I’m more interested in the machine’s origin story. How did Edison generate the idea in the first place?

We tend to think of inventors as another species—geniuses—who have sudden flashes of insight. I can’t think of a single instance when a light bulb went off in my head, leading to some killer new idea. Is that because I’m an uncreative dud? Perhaps. Alternatively, it might be because Eureka moments are the stuff of legend. According to historians who specialize in the development of inventions and the thought processes of inventors, innovation is often a slow and iterative process.

And what, exactly, is involved in said process? One decades-old theory says that the crux of creativity lies in making analogies. Yes, just like those SAT questions: Crumb is to bread as…splinter is to wood. Medicine is to illness as… law is to anarchy. Creative people, the theory goes, are constantly connecting old knowledge and experiences to new situations. Edison’s kinetoscope, for instance, owes a lot to analogy.

One of the earliest hints of the kinetoscope idea, according to historians W. Bernard Carlson and Michael Gorman, dates to an evening in February 1888, when Edison went to a lecture not far from his laboratory at the New England Society in Orange, New Jersey. The lecturer was Eadweard Muybridge, a British photographer famous for capturing animals in motion. “Afterwards, Edison invited Muybridge to visit the laboratory,” Carlson and Gorman write in a 1990 paper. While Muybridge was at the lab, he mentioned that he mounted his photos in a praxinoscope, a spinning cylinder, to create the illusion of motion. “From Muybridge, Edison learned that motion could be recorded in a sequence of photographs,” Carlson and Gorman write.

Source: Wikipedia

Recording motion, Edison realized, was not so different from recording sound, which he had already done with his phonograph. Eight months after meeting Muybridge, Edison spelled out the analogy in a preliminary patent for the kinetoscope: “I am experimenting upon an instrument which does for the Eye what the phonograph does for the Ear, which is the recording a reproduction of things in motion, and in such a form as to be both cheap, practical and convenient,” he wrote.

Many other great thinkers have also used analogies to great effect. In their book Mental Leaps, cognitive scientists Keith Holyoak and Paul Thagard cite Vitruvius, a Roman architect, as the first person in recorded history to use an analogy to drive a scientific theory. In describing, more than 2,000 years ago, how to best build a theater, Vitruvius proposes that voice sounds are like ocean waves. “As in the case of the waves formed in the water, so it is in the case of the voice,” Vitruvius wrote. “The first wave, when there is no obstruction to interrupt it, does not break up the second or the following waves, but they all reach the ears of the lowest and highest spectators without an echo.”

Johannes Kepler, a great astronomer of the late 16th century, also loved a good analogy. One of his most famous came about when he was trying to understand why planets furthest from the sun move slower than those closest to the sun. He thought it might be due to some sort of spirit coming from the sun. But there was a big problem with this idea. As psychology researchers Dedre Gentner and Arthur Markman explain in a 1997 paper: “For the sun to move the planets would require action at a distance, an abhorrent notion to any physical scientist.” Kepler got around this problem with an analogy: What if that sun-centered spirit (later known as gravity) was like light? Just as light can travel invisibly from the sun to illuminate a given place, Kepler proposed, a force could travel from the sun to a planet and affect its motion.

OK, so analogies seem to work well for some folks. But why would analogy lead to new ideas? According to the analogy theory, it’s because making analogies requires thinking across traditional mental categories. In fact, some cognitive scientists have proposed that the farther the analogy—that is, the farther apart the previous experience and new situation—the more likely it will lead to a radically new idea.

The analogy theory makes intuitive sense, but there’s not much empirical evidence to back it up. Most of the scholarship comes from historians looking closely at the writings of famous people like Edison, Vitruvius and Kepler. But a new study in the journal Cognitive Science tries to provide some concrete, on-the-ground data by taking a very thorough look at how people brainstorm.

Joel Chan and Christian Schunn of the University of Pittsburgh analyzed several hours of video tape of a real-world design team. The team included 10 people with a range of expertise—from electronics, mechanical engineering, business consulting, ergonomics, and industrial design—who were working on creating a new hand-held printer that could be used by children.

Chan and Schunn perfumed a word-by-word analysis of the designers’ conversations, mapping out how one thought led to the next. They found that the far analogy theory didn’t apply to this team. When group members used far analogies (such as comparing part of the product to a garage door), they were not more likely to reach radical new ideas than when they used other kinds of analogies or no analogy at all. In fact, far analogies tended to precede fairly incremental leaps in thought.

But that doesn’t mean the far analogies weren’t useful; far from it. It turns out that far analogies helped the designers make a series of related, incremental connections, rather than leaping over big concepts. That didn’t make sense to me until I read some of the snippets from the transcript. Here’s one, for instance, where the garage door analogy leads to a roller door analogy, allowing the designers to refine a new idea:

Todd: I’m thinking of something a bit like erm the flap on a video tape
(Pause)
Alan: uh-huh what the flap?
Todd: yeah
Tommy: like a garage door type of thing
Todd: yeah push the button, then it goes open
Tommy: yeah
Todd: but that’s probably overly complicated
Rodney: garage door, well it could be a roller
Todd: a roller door

One of the implications of this study, the authors note, is that incremental thinking can be crucial for innovation. “We might infer from the present data that incremental accumulation of many small insights is at least as likely to lead to innovative outcomes as direct generation of very novel concepts,” they write.

I don’t know much about business and engineering, but this absolutely jibes with my experience as a writer. For me, writing is just a series of connections.

Take this post, for example. It started when I read a press release about the new Cognitive Science study. The introduction of that study referenced other studies, about Edison’s kinetoscope and Kepler’s sun spirit, as well as the Mental Leaps book. I read those references, and some related (and, OK, maybe some not-so-related) Wikipedia articles. And then I tried to summarize everything I had learned. None of the ideas in this post are new, but, hopefully, they’re presented in a new way. The process is nothing like the spark of a light bulb, but when it works, it illuminates all the same.

There are 15 Comments. Add Yours.

  1. Joe Maxwell
    June 18, 2014

    In the Industrial Design world, new ideas come very easily if your clients will allow it. I have been very lucky to have had clients who wanted to do things that would improve peoples lives. We are trained well in problem solving methodology. By defining the problem. you are well on the way to solving the problem. A better solution is usually an innovative concept. New technology often leads to new ways of solving old problems but many old and deadly problems can be solved with readily available, proven technology. I have always tried to incorporate the real needs of the end user ( universal design ) when defining the problem even though it was not part of the client’s criteria. I have had my own design business since 1962 but since retiring, I have been working on solutions to international problems that can be solved with good design such as saving water, helping people use free heat / energy, solving the problems with transportation, problems with living older and things like that. Some of my solutions are making their way to reality. Growing old is good but not better and doing things to make lives better for people makes my life better.

  2. Jamie Hlusko
    June 18, 2014

    Doug Hofstadter’s latest book Surfaces and Essences defends the view that analogy is at the core of all cognition: http://surfacesandessences.com/

  3. Alex Dirix
    June 19, 2014

    Reading your article urged me to think. Thinking is the beginning of renovation. You did a good job.

  4. John Barling
    June 19, 2014

    I have wondered about this for many years. Thank you Virginia for a well researched and clear piece; you made some good connections. Like you I have not really had that light bulb moment that has changed the world but have been able to build on and develop some ideas of others to good effect.

  5. Don L, Johnson
    June 20, 2014

    Back in the late ’50s I spent my nights sitting on the fantail
    of a US destroyer on Red Sea patrol looking at the deep night sky. I tried, in vain, to get my head around the idea of infinity for an eternity. Of course this boggled my eighteen year old brain (still does) but I did have a ‘light bulb’ moment and wrote an article for the fleet news sheet that defines more clearly than I have seen elsewhere the notion of ‘parallel universes’ and ‘multi-dimensional’ existence.
    Boiled down to a single sentence along the lines of “There ain’t no free lunch.”

    If you have an infinite amount of space for an eternity you must then have an infinite number of possibilities and that means EVERYTHING has to occur not just once….but an infinite number of times.

    That’s my position and I’m sticking to it.

  6. Michael J Day
    June 21, 2014

    On a side note, in her book “Quiet: The Power of Introverts in a World That Can’t Stop Talking”, Susan Cain questions brainstorming as an effective creative process.

    She gives a number of examples where the “creation” came about when the creator was alone, without any outside input.

  7. Hominid
    June 22, 2014

    Haven’t you heard that necessity is the mother of invention?

    Jury-rigging can often lead to invention.

  8. Yaneer Bar-Yam
    June 22, 2014

    Analogies are one example of a more general process of creating composites. We create combinations of thoughts from different parts of our brain. See Chapters 2 and 3 in Dynamics of Complex Systems
    http://necsi.edu/publications/dcs/

  9. Ben P. Stein
    June 22, 2014

    Hi Virginia, thanks for your article. I think that thought experiments might be another example of a way in which new ideas are formed. They seem to require a scenario, not necessarily inspired by an analogy that is then played out to its conclusion. Thought experiments seem to have been particularly useful in the development of new concepts such as in relativity (Einstein’s chasing of a beam of light) and quantum mechanics (Schrödinger’s cat). Also, purely mathematical explorations, starting from an abstract concept, seem to be another way in which new ideas can be formed. Also, my friends have pointed out that neural noise (random electrical processes in the brain) may stimulate new ideas as well.

  10. MalcT
    June 23, 2014

    I have been following your blog since it first came out in Nat Geo and I have to say your articles are becoming more and more interesting, with all the catchy titles and references. In fact I often feel left out if I missed any of your articles. Oh well you write about cognitive science……..

    Good job, Miss Hughes~!

  11. David Bump
    June 24, 2014

    Good article, good comments. Probably different kinds of new ideas tend to come more easily with different conditions, techniques, and approaches, but I doubt we can expect innovation, creativity, inventiveness, and other forms of generating new ideas to all be sorted out into neat categories. Perhaps with advances in Artificial Intelligence we will be able to test approaches such as using analogies more rigorously. I suspect that knowledge is based on organizing basic concepts: Self, Other, Condition, Position, Change… Innovation then would be the ability to take such concepts (and higher ones built from combinations of them) and combine those in new ways, especially when paired with the ability to analyse the effects of those combinations before putting the new ideas to the test in real life. Being habitually too pessimistic would stifle innovation entirely, while not assessing the value or being overly optimistic would lead to too many failures and an end to innovation through personal discouragement and loss of trust and faith (and funding!) from supporters.

  12. David Bump
    June 24, 2014

    P.S. Cute typo!
    “Chan and Schunn perfumed a word-by-word analysis of the designers’ conversations,…”

  13. Fazloon
    July 2, 2014

    Well ideas come from history, we refer the history and then we plan it

  14. Alexander Magoun
    July 2, 2014

    Tom Hughes writes extensively on the use and value of analogy and metaphor in the inventive efforts of Edison, Sperry, et al. in American Genesis (1989, 2nd ed. 2004: http://books.google.com/books?id=-Hn_o1F5uL0C&q=analogy#v=onepage&q&f=false).

  15. Murem Sharpe
    July 2, 2014

    It’s important to collaborate in person. Much as virtual teams are useful in carrying out the plan for new invention, the new invention usually emerges from a team that is shoulder-to-shoulder.

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