Future visioning is important for generating new ideas. One effective way to get people thinking about the future is by showing them visual representations of what it could look like. Visioning provides benefits such as establishing a common goal, encouraging creativity, and allowing people a sense of control over the future. Prototyping and building representations, even at a basic level, helps validate ideas and iterate on them through user feedback before fully developing a product. The document discusses different types of prototypes from initial sketches to more refined designs and provides examples of how organizations like Microsoft use future visioning and prototyping.