Guideline: Use interaction in visualization sparsely and cautiously.
I accidentally found this guideline online. I guess that the author (Gröller) may not wish to call it a guideline, but I find this intriguing as many in visualization seem to argue for more interaction. I also find this thinking may be useful in many situations. I am wondering how much interaction is too much and how much is too little. I also wonder if the amount of interaction is a function of data, users, and tasks. Can Der Meister or his former and current students offer more insights on this guideline?