Sure, I'll try to explain what a virtual world is.

A virtual world is a computer-generated environment that people can access and explore as avatars. These avatars can be in text or graphical form and can communicate and participate in activities with other users in the virtual world. Virtual worlds can be based on real or imagined scenarios, and can be used for games, computer conferencing or chatrooms. Communication between users can range from text to real-time voice/video communication.
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