Alan Turing, one of the foundational figures in computer science, was obsessed with artificial intelligence towards the end of his tragically short life. So much so, in fact, that he came up with an unofficial test for when a computer can be said to be truly intelligent like a human, what we now call The Turing Test.
The test is pretty simple. Have someone communicate with a computer and if they cannot tell that they are talking to a computer — that is, it is indistinguishable from a human to another human — then the computer would have risen to the level of human intelligence.
