Understanding Presence
نویسنده
چکیده
In a sense, all reality is virtual. It is constructed through our sense organs and cognitive apparatus. Reality is not "out there", it is what we take to be "out there". The brain is tuned in a sophisticated way to the perceptual invariants of our physical environment. Using these invariants, one can also produce illusions which the brain will be unable to discriminate from physical reality. This is the basis of various visual illusions, sleight of hand, and, more recently, virtual reality.
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