Life on Earth is often interesting with virtual reality simulations so real that worldwide addiction is very common. Holography allows users to modify the appearance of their dwellings or selves into more appealing facades. Violent "future-sports" enable fast-paced thrills with life and death consequences that keep the crowds coming back for more. Cloning has brought the extinct back to life and enabled mankind to create a subclass of humans that not only fill the need for cheap labor and exotic entertainment, but have now become a social cause for clone rights groups. In addition to earthbound life there are The O'Neills—a network of space stations and microwave generators that orbit the Earth and Moon bases, representing the major economic combines. Lastly, there is the great, if economically devastating, experiment of terraforming Mars.