fingerpaint

But certain applications could benefit from a stylus such as drawing/painting...just as you would use a brush/pencil/whatever to make art in the "real world"...else everyone would just fingerpaint everything.

The traveling show is called "Liquid Vision: Lasers, Holograms and Virtual Reality" and endeavors to transport visitors to a cybernetic future where children fingerpaint on computer screens and would-be rock-and-rollers can make and produce their own video and take it home.