We are moving toward the fourth industrial revolution, in which mobile communications, social media and sensors are blurring the boundaries between people, the Internet and the physical world.
Data is increasingly building up on who we are, who we know, where we are, where we have been and where we plan to go. Mining and analysing this data lets us understand and predict how people behave at the individual, group and global level. These swathes of new digital data are as valuable for economies and societies as they are fraught with questions about privacy.