Unlike newspapers though, which are of unknown origin, each track in Undersound will have a birth-place, giving added meaning.

ENGADGET: Undersound, a way to trade music on the London Underground

Most mobile robots do this using a technique called SLAM (simultaneous localisation and mapping), whereby they build up a map of their unknown environment, using various sensors, whilst keeping track of their current position at the same time.

BBC: NEWS | Technology | 'Guessing' robots find their way

Barzelay has never been afraid to turn a pop song into a mission statement: For proof, check out Clem Snide's masterful "I Love the Unknown, " which Barzelay helpfully tacks on as a bonus track to Lose Big.

NPR: Eef Barzelay: A Blueprint For Finding Love

There are now tools that collect intelligence, identify previously unknown attack attempts, and alert network operators to successful intrusions, giving them the ability to track down and eradicate them.

FORBES: There Is No Need For A Cybersecurity Executive Order