I'll start from a long time ago, just to break the ice. Of course i'm quoting Alan Turing because of his advancements in the field, i would never dare to put him in the same place as the weird messianic techbros
Alan Turing, 1950 - "I believe that in about fifty years'time it will be possible to programme computers, with a storage capacity of about 10*, to make them play the imitation game so well that an average interrogator will not have more than 70 per cent, chance of mating the right identification after five minutes of questioning."