Cumulative Record. Chapter 20: What Is Psychotic Behavior? Quote 13

The practical criteria of prediction and control will force us to take into account the complete causal chain in every instance. Such a program is not concerned with establishing the existence of inferred events, but with assessing the state of our knowledge.

This does not mean, of course, that the organism is conceived of as actually empty, or that continuity between input and output will not eventually be established. (p. 315)