John Searle's The Chinese Room

The Chinese Room is a thought experiment created by John Searle to differentiate human intelligence form artificial intelligence. In his experiment, someone who does not speak Chinese sits in a room filled with Chinese characters and a book of instructions. The person in the room receives messages from a Chinese speaker, finds the matching characters in his book, and returns new characters based on the book's instructions. This thought experiment demonstrates that one can appear to have knowledge of something without really having it.

This thought experiment proves that computers can convincingly display consciousness, intelligence, or any other thing we humans display. The believability of said simulations are only limited by the programmers