Footnotes

• Handling editor Ellen J Weber

• X @dsdarbyshire

• Contributors DD was asked to provide a commentary to Kneafsey et al. During the development the paper changed to an in perspective piece with input from the EMJ editors. DD is author and guarantor for the paper. DD wrote this article and will act as the guarantor.

• 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 None declared.

• Provenance and peer review Commissioned; internally peer reviewed.