A distressing trend in American museums and public aquariums is the substitute of touch screens or, in the case of San Francisco’s aquarium, non-touch screens, for paper signs or backlit transparencies. In theory it sounds good to replace a 1 cent piece of paper with a $500 touch screen, but in practice it is now possible to learn about just one animal at a time where in the past it was possible to learn about all of the animals in a tank at once. Below is a rather clumsy touch screen from the Dallas aquarium. It was not nearly as responsive as an Android or iOS tablet and most patrons simply gave up on using these devices. It would have taken 5 minutes or so to associate names with photos for 10 or 12 fish within a tank. Maybe Edward Tufte needs to write a new book just for people who design museum exhibits, explaining that it is better to be able to see 20 things without any interface.