Hock is the scientist and indeed has been employed in such a capacity by the government. He believes that since a battle is primarily a clash of technology, it can be measured. Proving ground data is his bible. Armor actions can be studied by careful study of "projectile penetration" vs. armor...The artist responds that this shell vs. armor test does not always hold true in the battlefield environment...The artist concludes...that when shell hits armor, "anything" (such as hits on vision ports, slung equipment, oblique angles, variable metal quality of cast armor, etc.) can happen and that only a most generalized statement of probability can be made.