>Consider first the more accurate form of the question. I believe that in about fifty years' time it will be possible, to programme computers, with a storage ca

>Consider first the more accurate form of the question. I believe that in about fifty years' time it will be possible, to programme computers, with a storage capacity of about 10^9, to make them play the imitation game so well that an average interrogator will not have more than 70 per cent chance of making the right identification after five minutes of questioning. (Turing 1950) That was the test as discussed by Turning - five minutes, <70% chance of getting it right. It's not that demanding. The test you mention could maybe be called an enhanced Turing test but the original one is pretty much passed. He was a bit off on the time taken and memory used. I think more like 75 years and 50 GB rather than 50 years and 125 MB.