View all newsletters
Sign up to our newsletters

Support 110 years of independent journalism.

  1. Politics
  2. Education
29 November 2012

How knowledge makes you stupid

Martha Gill's Irrational Animals column.

By Martha Gill

When you’re trying to express a really interesting idea you’ve just had, perhaps a way to solve all war, or what if this universe, is like, an atom inside another universe? –  there’s nothing more annoying than coming across an expert in the field. Their voice turns calm, authoritative, slightly nasal, and they immediately dismiss your thought. “Oh that’s blablabla-ism”, they say or “I’ve watched Men in Black too”. 

But then it’s always impossible to listen to other people when you’ve studied the subject they’re talking about. George Eliot puts it best in Middlemarch when she describes conversations between a young woman and her learned husband, Mr Casaubon: “If she spoke with any keenness of interest to Mr Casaubon, he heard her with an air of patience . . . and sometimes mentioned curtly what ancient sects or personages had held similar ideas, as if there were too much of that sort in stock already; at other times he would inform her that she was mistaken, and reassert what her remark had questioned.”

Shock of the new

Mr Casaubon is not an attractive character but his attitude is partly the result of his expertise. He found his way around these subjects years ago, working hard to get patterns from the mess, and the lines have now  hardened, permanently.

It happens to us all though – even taxi drivers, and in their case there’s neural evidence. You can track distinctive changes in a cabbie’s brain after he gets “The Knowledge” –a working memory of the entire map of London – which expands his hippocampi (spatial areas). But the expertise comes at a cost – he finds it much harder to imagine alternative ways around the city. This was shown up in a fairly recent experiment by the psychologists Katherine Woollett and Eleanor Maguire, who performed memory tests on a group of London taxi drivers and found they struggled to learn new routes in areas they knew well. The researchers suspected that The Knowledge, which had enlarged and spread one section of the hippocampus out into other brain areas, was getting in the way making new memories. Once we make our own maps, it seems, they are strangely inflexible. 

But it’s not just spatial knowledge that does this. Accountants find it harder than amateurs to apply new information they have just read to the world of business; expert bridge players are less likely to adapt to new versions of the game. A recent study found that although doctors are more accurate at diagnosis, they are worse than third-year interns at remembering what information it was that they used.

Select and enter your email address Your weekly guide to the best writing on ideas, politics, books and culture every Saturday. The best way to sign up for The Saturday Read is via saturdayread.substack.com The New Statesman's quick and essential guide to the news and politics of the day. The best way to sign up for Morning Call is via morningcall.substack.com Our Thursday ideas newsletter, delving into philosophy, criticism, and intellectual history. The best way to sign up for The Salvo is via thesalvo.substack.com Stay up to date with NS events, subscription offers & updates. Weekly analysis of the shift to a new economy from the New Statesman's Spotlight on Policy team. The best way to sign up for The Green Transition is via spotlightonpolicy.substack.com
  • Administration / Office
  • Arts and Culture
  • Board Member
  • Business / Corporate Services
  • Client / Customer Services
  • Communications
  • Construction, Works, Engineering
  • Education, Curriculum and Teaching
  • Environment, Conservation and NRM
  • Facility / Grounds Management and Maintenance
  • Finance Management
  • Health - Medical and Nursing Management
  • HR, Training and Organisational Development
  • Information and Communications Technology
  • Information Services, Statistics, Records, Archives
  • Infrastructure Management - Transport, Utilities
  • Legal Officers and Practitioners
  • Librarians and Library Management
  • Management
  • Marketing
  • OH&S, Risk Management
  • Operations Management
  • Planning, Policy, Strategy
  • Printing, Design, Publishing, Web
  • Projects, Programs and Advisors
  • Property, Assets and Fleet Management
  • Public Relations and Media
  • Purchasing and Procurement
  • Quality Management
  • Science and Technical Research and Development
  • Security and Law Enforcement
  • Service Delivery
  • Sport and Recreation
  • Travel, Accommodation, Tourism
  • Wellbeing, Community / Social Services
Visit our privacy Policy for more information about our services, how New Statesman Media Group may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications.
THANK YOU

We need experts but there is a trade-off in creative thinking. Little wonder that innovations most often happen at the intersection of two fields of expertise. It’s not due to the combination of knowledge, but to bright people crossing into areas they are not familiar with.

Content from our partners
The promise of prevention
How Labour hopes to make the UK a leader in green energy
Is now the time to rethink health and care for older people? With Age UK

Select and enter your email address Your weekly guide to the best writing on ideas, politics, books and culture every Saturday. The best way to sign up for The Saturday Read is via saturdayread.substack.com The New Statesman's quick and essential guide to the news and politics of the day. The best way to sign up for Morning Call is via morningcall.substack.com Our Thursday ideas newsletter, delving into philosophy, criticism, and intellectual history. The best way to sign up for The Salvo is via thesalvo.substack.com Stay up to date with NS events, subscription offers & updates. Weekly analysis of the shift to a new economy from the New Statesman's Spotlight on Policy team. The best way to sign up for The Green Transition is via spotlightonpolicy.substack.com
  • Administration / Office
  • Arts and Culture
  • Board Member
  • Business / Corporate Services
  • Client / Customer Services
  • Communications
  • Construction, Works, Engineering
  • Education, Curriculum and Teaching
  • Environment, Conservation and NRM
  • Facility / Grounds Management and Maintenance
  • Finance Management
  • Health - Medical and Nursing Management
  • HR, Training and Organisational Development
  • Information and Communications Technology
  • Information Services, Statistics, Records, Archives
  • Infrastructure Management - Transport, Utilities
  • Legal Officers and Practitioners
  • Librarians and Library Management
  • Management
  • Marketing
  • OH&S, Risk Management
  • Operations Management
  • Planning, Policy, Strategy
  • Printing, Design, Publishing, Web
  • Projects, Programs and Advisors
  • Property, Assets and Fleet Management
  • Public Relations and Media
  • Purchasing and Procurement
  • Quality Management
  • Science and Technical Research and Development
  • Security and Law Enforcement
  • Service Delivery
  • Sport and Recreation
  • Travel, Accommodation, Tourism
  • Wellbeing, Community / Social Services
Visit our privacy Policy for more information about our services, how New Statesman Media Group may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications.
THANK YOU