The basic idea of virtual reality (VR) is to create a computer generated environment which someone can experience and explore, through the use of a headset (incorporating vision and sound) and sometimes other input devices (eg haptic gloves) which allow them to manipulate their virtual surroundings. The concept of a computer simulated reality is nothing new and experiments with VR systems were already being carried out in the late 60s (eg The Sword of Damocles). Advances in technology during the late 80s and early 90s led to an increasing cultural awareness of VR through films such as Lawnmower Man – and the rise of computer games prompted more companies to attempt to create a device which could be used in the same way as a home console. But progress was slow, with a trailblazing attempt by Sega in 1993 terminated, officially due to fears that users could injure themselves by moving around due to the “reality” of the headset (although perhaps more to do with limited processing power and reports of testers developing headaches and motion sickness). However, although it struggled to take off as a consumer device, VR systems have been used for many years for training in certain professions: teaching pilots to fly, police officers to shoot and surgeons to operate.