Alan Turing proposed his now famous test back in a seminal paper published in 1950. The test was presented as a way of answering the question, Can machines think? The questioner gets to interrogate a computer, directing each question at either X or Y; a questioner can group all of Xs answers together. At the end, he has to work out who’s who. To pass a proper Turing test, a computer program would need a much broader set of skills than it would need to read the following CAPTCHA.”]