Techne and Comprehension

Whitehead's significant error is to equate Prehension with Feeling.  For, Prehension means Grasp, which, unlike Feeling, involves motor processes in its relation to its object.  Now, the distinction between physical Grasp and intellectual Grasp is that the relation of the latter to its object exceeds the moment--it includes a concept of the antecedent conditions of the object, e. g. its causes, as well as a concept of its potential consequences.  In other words, intellectual Grasp originates in a knowledge of how its object can be used to modify other objects.  Now, of the standard stock of Intellectual terms, Comprehension most precisely characterizes Grasp.  Thus, Techne--knowing how to use an object--is the essence of Comprehension.  That is, Comprehension is Knowledge of a continuation of a Causal chain.