Consider the number of networked cameras that capture data about you as you go about your day. Surveillance cameras are mounted in offices, stores, public transportation; on city streets, ATM machines, and car dashboards. You or your neighbors may have installed cameras to watch over your front door; you may have a webcam watching over your valuables—perhaps even your children. Security cameras are virtually everywhere, installed both to provide a record if a crime is committed and to deter people from committing a crime in the first place. Based on an exhaustive survey of the number of such cameras in one English county in 2011, it was estimated there were 2 million surveillance cameras in the United Kingdom alone—about one camera for every thirty people. ... Generalizing this to the rest of the world, there are about 100 million cameras watching public spaces, all day and all night. Yet, this is only one-tenth of the 1 billion cameras on smartphones. Within the next few years, there will be one networked camera for every single person on the planet. ... If technology continues to follow Moore’s Law, doubling the computing power available at the same price every 18 months, we will very likely be sharing the world with roughly 1 trillion sensors by 2020, in line with projections from Bosch, HP, IBM, and others. ... If everything is recorded, will it encourage "better" behavior? And how will the lack of any recording be interpreted?

Although robotic ships of this sort are some ways off in the future, it’s not a question of if they will happen but when. My colleagues and I at Rolls-Royce anticipate that the first commercial vessel to navigate entirely by itself could be a harbor tug or a ferry designed to carry cars the short distance across the mouth of a river or a fjord and that it or similar ships will be in commercial operation within the next few years. And we expect fully autonomous oceangoing cargo ships to be routinely plying the world’s seas in 10 or 15 years’ time. ... Remotely controlled ships, piloted by people on shore, and autonomous ships, which can take actions for themselves, are the latest beneficiaries of increasing digital connectivity and intelligence. These developments in electronic sensors, telecommunications, and computing have sparked interest in a range of autonomous vehicles including cars, planes, helicopters, trains, and now ships. ... That people should be seriously interested in robotic ships is easy enough to explain: Such ships are expected to be safer, more efficient, and cheaper to run. According to a report published by the Munich-based insurance company Allianz in 2012, between 75 and 96 percent of marine accidents are a result of human error, often a result of fatigue.