Book excerpt: This book focuses on the recent developments of virtual reality (VR) and immersive technologies, what effect they are having on our modern, digitised society and explores how current developments and advancements in this field are leading to a virtual revolution. Using Ivan Sutherland's ‘The Ultimate Display’ and Moore’s law as a springboard, the author discusses both popular scientific and technological accounts of the past, present and possible futures of VR, looking at current research trends, developments, challenges and ethical considerations to the coming age of differing realities. Being Really Virtual is for researchers, designers and developers of VR and immersive technologies and anyone with an interest in the exponential rise of such technologies and how they are changing the very way we perceive, interact and communicate within our digital society.