The removal of James Heilman (Doc James) from the Wikimedia Foundation Board of Trustees has brought the issue of the “knowledge engine”, i.e. the work of the WMF’s "Discovery" department, into focus for the volunteer community.
Ever since his dismissal, Heilman has maintained that disagreements about appropriate transparency related to the Discovery, or "Knowledge Engine", project, funded by a restricted grant from the Knight Foundation, were a key factor in the events that led to his removal. Jimmy Wales has referred to these claims as "utter fucking bullshit".
But what is "discovery" and the knowledge engine all about? This is an attempt to make sense of the patchy information that the Wikimedia Foundation has provided to the volunteer community and the public to date, and to extract some of the underlying ideas related to the project.