People aren't stupid, and if it was a parlour trick it was an exceptionally well-executed on. People, even those who don't have a grasp on the computational complexity of language and reasoning, seem legitimately impressed by the performance.
Yes, and it was a real research collaboration - a brilliant insight - to see that the Jeopardy language was constrained and tractable to analysis that would allow a mapping to a solver.
I have not been involved in these efforts or the community closely enough to say, but I think that things like controlled english
