The real world is defined as, "the realm of practical or actual experience, as opposed to the abstract, theoretical, or idealized sphere of the classroom, laboratory, etc.:" (Dictionary.com) while the virtual world is defined as, "a computer-based online community environment that is designed and shared by individuals so that they can interact in a custom-built, simulated world" (Technopedia.com). The virtual world must be computer based, however the real world can be computer based but is not confined to computers. Human beings can be in the real world while simultaneously participating in the virtual world, but can never concretely be in the virtual world. A human can only imagine themselves in the virtual world; they cannot physically enter said world.