Turing proposed the following (or something similar) many decades ago. Provide a person with a keyboard & two computer screens. What ever the human types is displayed on both screens. Replies and or remarks are provided to each screen. The replies/remarks on one screen are produced by a computer, while a human being provides replies/remarks to the other screen. The computer program tries to emulate a human being, while the human makes relies/remarks he considers appropriate. If the person cannot tell which replies/remarks are from the computer, the program has passed the Turing Test. I do not think anyone ever wrote a program which passed the above test.