 A joint commitment can, on this account, only be brought about (or rescinded) jointly. A joint commitment of this kind does not require a “single centre of consciousness” or a “distinctive form of ‘subjectivity’” (2006: 134), it is the commitment precisely of those bound by it. According to Gilbert, each joint commitment is a joint commitment to do X as a body, where substitutions for “X” include “intend”, “believe”, “accept”, and so on. A joint commitment to believe something as a body, for instance, is a commitment to constitute as far as possible a single body that believes that thing, where 