To unify the various commentaries, I show that (1) Piaget attempted to synthesize thousands of observations and experiments into a unified model, an experimental epistemé different from the many experimental epistemés that characterize contemporary research; (2) Piaget addressed the issue of time in several works, although he did not pay much attention to the beginnings and endings of actions; (3) he did not endorse the rhetoric of magical interaction, but took into account the role of social factors in development and, in his experiments with infants, used several strategies to control his own influence on the child.