Did you know that there have been four industrial revolutions? According to Wikepedia, we have seen the mechanization, assembly line, and computer/automation industrial revolutions and are heading into the cyber-physical industrial revolution wherein we can create smart factories that draw upon internet of things, cloud computing, and cyber-physical systems. According to Forbes, this fourth industrial revolution or Industry 4.0 is a world "in which computers and automation will come together in an entirely new way, with robotics connected remotely to computer systems equipped with machine learning algorithms that can learn and control the robotics with very little input from human operators."