The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy’s cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.
The McNamara fallacy, named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven.
The fallacy refers to McNamara's belief as to what led the United States to defeat in the Vietnam War—specifically, his quantification of success in the war (e.g., in terms of enemy body count), ignoring other variables.
[Andy Crouch] quotes the Japanese theologian Kosuke Koyama saying that “the speed of God” is three miles an hour because that was the speed at which Jesus moved through his world. So maybe, and I think this is one of the chief burdens of Andy’s book, what makes the most sense for us is to try whenever possible to move at the speed of God – and in that way refuse the offer of superpowers.
Of course, this dovetails with a lot of things people have been writing lately about slowness, but what I like about Andy’s book is that it specifies why we can find ourselves responding so warmly to the possibility of slowness. What happens when we seek superpowers, and especially super-speed, is the sacrifice of what I want to call our proper powers – the powers through the exercise of which we (heart-soul-mind-strength) flourish in love.