 What was the solution for increased complexity in the late 19th, early 20th century?
And from this scale of practical effects, complexity emerges. These two features−the global scale of interdependence of human action, and the systematic acceleration of innovation, make contemporary life a bit like a slow motion disaster, in one important respect. Trains and planes, telegraph and telephone, all brought many people into the same causal space. The solution to this increased complexity in the late 19th, early 20th century was to increase the role of structure and improve its design. During the first two-thirds of the twentieth century, this type of rationalization took the form of ever-more complex managed systems, with crisp specification of roles, lines of authority, communication and control.
 The increased role of structure and improved design
 Assembly lines  The increased role of structure and improved design  Complex managed systems  Child labor laws