20. The system of claim 1 , wherein said source identity acquisition module configured to acquire source identity data providing at least one identity of one or more sources that provide a basis, at least in part, for the inference data, the one or more sources including at least the one or more sensors comprises: a sensor identity (ID) acquisition module configured to acquire one or more identities of the one or more sensors used to sense the at least one physical characteristic of the authoring user.
20. The system of claim 1 , wherein said source identity acquisition module configured to acquire source identity data providing at least one identity of one or more sources that provide a basis, at least in part, for the inference data, the one or more sources including at least the one or more sensors comprises: a sensor identity (ID) acquisition module configured to acquire one or more identities of the one or more sensors used to sense the at least one physical characteristic of the authoring user. 22. The system of claim 20 , wherein said sensor identity (ID) acquisition module configured to acquire one or more identities of the one or more sensors used to sense the at least one physical characteristic of the authoring user comprises: a sensor identity (ID) acquisition module configured to acquire an identity of a functional near infrared (fNIR) device used to sense the at least one physical characteristic of the authoring user.