therefore there 's something comforting in knowing that some of the best brains in the university , who a generation ago would be coming up with some really exciting plans involving trick floorboards and exploding wallpaper , were spending all night in the high energy magic building , trying to teach hex to sing 'lydia the tattooed lady ' , exulting at getting a machine to do after six hours ' work something that any human off the street would do for tuppence , then sending out for banana-and-sushi pizza and falling asleep at the keyboard .