@nixCraft Alan Turing's legacy is indeed the stuff of legend, and he was treated appallingly badly by the UK government at the time. I would add (as others have in the replies above) that at least two achievements apart from the #Turing test are off-the-charts impressive:
The concept of the Turing machine. He arguably invented the modern CPU.
Cracking the German enigma code in WWII.
Incidentally, there's a great novel by Neal Stephenson called #Cryptonomicon. It's fictional, but it includes Turing as a character. And despite being fiction, the novel gives a great sense of how Turing's work fit into allied strategy in World War 2.