Differential calculus

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We know, however, that the mind is capable of understanding these matters in all their complexity and in all their simplicity. A ball flying through the air is responding to the force and direction with which it was thrown, the action of gravity, the friction of the air which it must expend its energy on overcoming, the turbulence of the air around its surface, and the rate and direction of the ball’s spin. And yet, someone who might have difficulty consciously trying to work out what 3 x 4 x 5 comes to would have no trouble in doing differential calculus and a whole host of related calculations so astoundingly fast that they can actually catch a flying ball.

People who call this “instinct” are merely giving the phenomenon a name, not explaining anything.

—Douglas Adams, Dirk Gently’s Holistic Detective Agency

So dissapointing when your literary heroes get it so badly wrong. Douglas Adams usually got it right, however and in this case was in auspicious, if not necessarily good, company, but that’s no great comfort, given the range of things Richard Dawkins has been insufferably misguided about.

When a man throws a ball high in the air and catches it again, he behaves as if he had solved a set of differential equations in predicting the trajectory of the ball. He may neither know nor care what a differential equation is, but this does not affect his skill with the ball. At some subconscious level, something functionally equivalent to the mathematical calculations is going on.

—Richard Dawkins, The Selfish Gene (1976).

See also

• Truth
• Certainty
• Doubt