The main specific topics addressed in this chapter include (1) the difference between aggregated data and per-person metrical data; (2) the unavoidable presence of intentionality in either kind of data; (3) problems of addressing the dynamics of intentionality with already aggregated data; (4) the futility of some debates about the category, “symbolic interaction”; (5) the unavoidable utilities of abstraction when modeling per-person actions and outcome; (6) the impacts of both habituations and institutional forms in social processes; (7) contrasting models of explanation in wake of, first, Newtonian mechanics, then Hume’s demonstration of an inevitable perceptual gap, followed by the failure of Kant’s proposed bridging solution as the relevance of the Newtonian model became increasingly restricted; and (8) the powers of stochastic models relative both to welters of contingency and uncertainty in social processes and to Kant’s categorical imperative.