1. A system in the form of a machine, article of manufacture, or composition of matter, comprising: an objective occurrence data solicitation module configured to solicit at least a portion of objective occurrence data including soliciting data indicating incidence of at least one objective occurrence, the solicitation being prompted based at least in part on a hypothesis linking one or more objective occurrences with one or more subjective user states and in response, at least in part, to an occurrence of at least one subjective user state associated with a user; and an objective occurrence data acquisition module configured to acquire the objective occurrence data, the objective occurrence data to be acquired including the data indicating incidence of at least one objective occurrence.
1. A system in the form of a machine, article of manufacture, or composition of matter, comprising: an objective occurrence data solicitation module configured to solicit at least a portion of objective occurrence data including soliciting data indicating incidence of at least one objective occurrence, the solicitation being prompted based at least in part on a hypothesis linking one or more objective occurrences with one or more subjective user states and in response, at least in part, to an occurrence of at least one subjective user state associated with a user; and an objective occurrence data acquisition module configured to acquire the objective occurrence data, the objective occurrence data to be acquired including the data indicating incidence of at least one objective occurrence. 29. The system of claim 1 , wherein said objective occurrence data solicitation module configured to solicit at least a portion of objective occurrence data including soliciting data indicating incidence of at least one objective occurrence, the solicitation being prompted based at least in part on a hypothesis linking one or more objective occurrences with one or more subjective user states and in response, at least in part, to an occurrence of at least one subjective user state associated with a user comprises: an objective occurrence data solicitation module configured to solicit the data indicating incidence of at least one objective occurrence in response, at least in part, to a subjective user state data reception module receiving data indicating incidence of the at least one subjective user state associated with the user.