@Joonas: Marrying-up two recent conversations: "AI" & "maths question": MIT is claiming to have developed a package for producing answers, with all workings-out, to university-level maths Qs. Similarly, Google is offering, "Minerva", with like properties. Neither appears to be available to the public (yet). Any thoughts?

@Joonas: If AI can print-out model answers to the most difficult Qs., do you foresee a time when there will no longer be teachers & lecturers--God forbid?! When I go to the supermarkets, banks of auto-tils face the customer. Just one, or two, (token) check-out girls remain--for how much longer? I dislike this "brave-new world". I am a dinosaur, longing for the old days of teachers, lecturers & check-out girls.