The primary driver for the discussion is the increased use of advanced technologies (like AI, robotics, cloud, analytics, nanotechnology, quantum computing, 3D/4D printing, Internet of Things, blockchain, self-driving vehicles, etc. and synergies among these) that will result in a reduced need for humans in the workplace.
The future of work then is closely intertwined with the rapid evolution of technology. Beyond technology, several other factors are already underway, widening the economic gap between the rich and the poor.