"Unless it is enjoyable or educational in and of itself, interaction is an essentially negative aspect of information software. There is a net positive benefit

"Unless it is enjoyable or educational in and of itself, interaction is an essentially negative aspect of information software. There is a net positive benefit if it significantly expands the range of questions the user can ask, or improves the ease of locating answers, but there may be other roads to that benefit. As suggested by the above redesigns of the train timetable, bookstore, and movie listings, many questions can be answered simply through clever, information-rich graphic design. Interaction should be used judiciously and sparingly, only when the environment and history provide insufficient context to construct an acceptable graphic." "Interaction considered harmful", by Bret Victor http://worrydream.com/MagicInk/ http://worrydream.com/MagicInk/