As he put it in his seminal paper “Machines Cannot Fight Alone”: The battle hangs on the power of the eyes or the ears to make a fine discrimination, to estimate a distance, to see or hear a signal which is just at the edge of human capacity. Radars don’t see, radios don’t hear, sonars don’t detect, guns don’t point without someone making a fine sensory judgment, and the paradox of it is that the faster the engineers and the inventors served up their “automatic” gadgets to eliminate the human factor the tighter the squeeze became on the powers of the operator—the man who must see and hear and
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