"Even the machines we made could not use better logic than this," he told her.
"Naturally. We have brains—Brains!" Narina looked at him with a startled light in her eyes.
He nodded soberly. "Brains," he said, "cerebration being nothing more than an application of logic. Narina, we have built the first mechanical brain."
"Which is thinking for itself."
Vinson looked around the plane wildly. "And here we sit in a machine—surrounded by the—enemy."
"Escape," said Narina bitterly. "The one thing we did not do!"
"Oh, I don't know," he said, waving the cube of metal with its trailing wires. "We have removed its communicating factor. This is—a dead and insensate machine now." He looked around once more. "Come to think of it, it was almost too easy. Now I know why."
"Why?"
Vinson's face soured. "Remember that in the so-called memory files of the logic computer is every bit of fact and knowledge that mankind could introduce in years of recording. That, Narina, makes the machine more learned, better equipped with knowledge, that any group of men on earth. It could have forestalled us—had it been able at the time!"