Care Protocol, Episode One — When Self-Driving Cars Start Killing

John is a physician, and he has a plan for his wife. Rest. Fresh air. No visitors who might excite her. Absolutely no writing.

He has four words. He's had them for forty-two years. He's said them in the car, he's said them in the shower with the water running, and he still can't get the stress to fall where it belongs.

Mark Twain falls into conversation with a pleasant gentleman who has mild opinions on weather, crops, literature, scandal and religion. Then the talk lands on burglar alarms, and the gentleman is suddenly not mild at all. His was the most imposing alarm in America. It had a gong the size of a washbowl, forty-seven little tags, and an expert from New York who always came when called, and always remembered to send a bill. Twain, who had an alarm put into his own Hartford house the year before he wrote this, lets the man talk.

Dr. Nathan Cole measures water for a living. It's quiet work, gauges and spreadsheets, the slow arithmetic of things that don't change much. Then a reservoir gains four inches overnight with no rain, no inflow, no explanation, and gives them back by morning. Everyone blames the sensor. The sensor is fine. What follows is the worst thing a careful man can discover, which is that he's been measuring the right thing all along.

Wall Street, a spring morning at the turn of the century. The ticker is running hot, the telephone won’t quit, and Harvey Maxwell, broker, is handling it all like a man with springs where his heart should be. His clerk thinks the boss is slipping. His stenographer has something on her mind. Then a window opens, and somebody on the Exchange starts clubbing the stuffing out of Union Pacific.