Philip K. Dick: Mr. Spaceship: A human brain-controlled spacecraft would mean mechanical perfection. This was accomplished, and something unforeseen: a strange entity called-

The war with the Yucks from Proxima Centauri was claimed to be a stalemate but they were really winning. The mine belts they laid seemed to propagate themselves and were slowly strangling Terran planets. How did they do that? What was their secret? The answer was baffling and the best human minds could only conclude that their ships and mines were somehow alive. So, the next desperate step was to ask "If they are using organic ships, why can't we do the same?". Thus Mr. Spaceship was concei...