derived from the consumption of the product is a future, or expected, pleasure, and can be said to be present, at the point of time at which a given unit of pain-cost is incurred, only in anticipation; and it cannot be said that the anticipated pleasure attaching to a unit of product which emerges from the effort of the producer during the relatively painless first hour's work exceeds the anticipated pleasure attaching to a similar unit emerging from the second hour's work. Mr. Clark has, in effect, explained this matter in substantially the same way in another connection (_e.g._, p. 42), where he shows that the magnitude on which the question of utility and cost hinges is the "total effective utility," and that the "total absolute utility" is a matter not of what hedonistically is, in respect of utility as an outcome of production, but of what might have been under different circumstances. An equally unprofitable result may be reached from the same point of departure along a different line of argument. Granting that increments of product should be measured, in respect of utility, by comparison with the disutility of the concomitant increment of cost, then the diagrammatic arguments commonly employed are inadequate, in that the diagrams are necessarily drawn in two dimensions only,--length and breadth: whereas they should be drawn in three dimensions, so as to take account of the intensity of application as well as of its duration.[37] Apparently, the exigencies of graphic representation, fortified by the presumption that there always emerges a surplus of utility, have led marginal-utility theorists, in effect, to overlook this matter of intensity of application. When this element is brought in with the same freedom as the other two dimensions engaged, the argument will, in hedonistic consistency, run somewhat as follows,--the run of the facts being what it may. The producer, setting out on this irksome business, and beginning with the production of the exorbitantly useful initial unit of product, will, by hedonistic necessity, apply himself to the task with a correspondingly extravagant intensity, the irksomeness (disutility) of which necessarily rises to such a pitch as to leave no excess of utility in this initial unit of product above the concomitant disutility of the initial unit of productive effort.[38] As the utility of subsequent units of product progressively declines, so will the producer's intensity of irksome application concomitantly decline, maintaining a nice balance between utility and disutility throughout. There is, therefore, no excess of "absolute utility" above "effective utility" at any point on the curve, and no excess of "total absolute utility" above "total effective utility" of the product as a whole, nor above the "total absolute disutility" or the "total effective disutility" of the pain-cost.