From wikipedia

An Organizer’s Perspective Part I: ‘Anyone can edit’ is not a strategy for growing the Wikimedia movement – Diff

Only a tiny portion of the global population sees the edit button as an invitation and is willing to invest time and energy in the centuries-long project we have invested in: the sum of all human knowledge

Only a tiny portion of the global population sees the edit button as an invitation and is willing to invest time and energy in the centuries-long project we have invested in: the sum of all human knowledge