Zo is er atuurlijk het Holodeck. Een fictieve technologie uit Star Trek waarbij een hele wereld in geuren en kleuren kan worden gesimuleerd.
According to the Star Trek: The Next Generation Technical Manual, the holodeck is an enclosed room in which objects and people are simulated by a combination of replicated matter animated with weak tractor beams, as well as shaped force fields onto which holographic images are projected. Sounds and smells are simulated by speakers and fragranced fluid atomizers, respectively. The feel of a large environment is simulated by suspending the participants on force fields which move with their feet, keeping them in one place (a virtual treadmill). Perspective is retained through use of sound damping fields and graviton lenses, which make objects, people, and sounds appear to be more distant. The effect is an ultra-realistic simulation of an environment, with which the user can interact.
Most holodeck programs run in first person "subjective mode", in which the user actively interacts with the program and its characters. The user may also employ third-person "objective mode", in which he or she is "apart" from the actual running of the program and does not interact with it (all of the program's characters will ignore the user as if they were not there). The user may then take more time to observe the trappings of the program, and even have conversations with other users, without interrupting the flow of the program itself.
Matter created on the holodeck requires the holoemitters to remain stable and will quickly disintegrate if it is removed from the holodeck, unless working with a mobile emitter.
According to the Starfleet Survival Manual, holomatter can be disrupted using an inverse photonic pulse from a phaser, which destroys the holomatter while leaving real matter unharmed. In theory, this could be used to escape a malfunctioning holodeck by repeatedly firing until the door is revealed. However, this has not happened in any Star Trek episode to date.
User controls for a holodeck are typically located near its door (inside and out); an arch surrounds the exit and can be summoned by a user to start, modify, or stop a simulation. The holodeck includes safety protocols to protect the users. While it does not entirely shield users from minor injury (such as strained muscles or dislocated joints), it does prevent more serious injuries and fatalities. The protocols were designed so that users could derive maximum use from the holodeck with a high degree of realism and perceived jeopardy. The safety protocols are similar to the first of the Three Laws of Robotics by Isaac Asimov: "A robot may not injure a human being or, through inaction, allow a human being to come to harm."
Er wordt gewerkt aan een realistische versie. Cave Automatic Virtual Environment, waarvan er één op Avans aanwezig is.
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