Given: The future is probabilities merging into one certainty. Proposition: Can the probabilities be made improbables so that the certainty becomes impossible? From Frederick to Baltimore, the rolling Maryland countryside lay under a fresh blanket of green. Wholly unaware of the summer glory, Dr. Curtis Johnson drove swiftly on the undulating highway, stirring clouds of dust and dried grasses. Beside him, his wife, Louise, held her blowing hair away from her face and laughed into the warm air. "