To offer up a challenge to traditional approaches of knowledge and clinical practice is not new. Indeed, the birth of evidence based medicine/evidence based practice (EBM/EBP) in the 1990s was hailed as providing an overdue and welcome challenge to the poor justification underpinning much clinical care. However, EBM/EBP has also been criticised by some as fostering a misguided and reductionist notion of what comprises “evidence”. Others have gone so far as to suggest that EBM and EBP …