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The notion that a group’s judgement may be superior to that of the individual continues to promote discussion.1 A study in Practical Neurology investigated the collective ‘wisdom of neurologists’ by analysing the distribution of 110 estimates of the master of ceremonies and presidential combined speech duration at the 2013 annual dinner of the Association of British Neurologists (ABN).2 That study emphasised a respect for cognitive divergence, whereby the inclusion of apparently anomalous estimates of the mean produced a more accurate prediction of the result (24 min and 30 s).
We conducted a similar experiment …
Contributors MCK delivered the Australian and New Zealand Association of Neurologists presidential speech and conceptualised the study. TD analysed the data, wrote the manuscript and created the figure. MK edited the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests Although MK delivered the Australian and New Zealand Association of Neurologists presidential speech, he did not vote nor was he involved in the timing or collection of votes at polling stations, which remained anonymous.
Patient consent for publication Not required.
Provenance and peer review Not commissioned. Externally peer reviewed by Rhys Thomas, Newcastle upon Tyne, UK.