“In the same way, software demos need to be convincing enough to explore an idea, to communicate a step toward making a product, even though the demo is not the product itself. Like the movie, demos should be specifically choreographed, so it’s clear what must be included and what can be left out. Those things that aren’t the main focus of a demo, but are required to create the proper setting, must be realized at the correct level of detail so they contribute to the whole rather than detract from the vision.”