The conversation between human and AI assistant.
[|Human|] Research the concept of virtual reality and explain it in one sentence.
[|AI|] Virtual reality is an immersive computer-generated simulation experienced through a head-mounted display or multi-projected screens, creating an environment that simulates physical presence in a real or imagined world, allowing the user to interact in that world.
[|Human|] 
Research the concept of virtual reality and explain it in one sentence.