Great products start with a vision. Somebody — perhaps a small group of people — has an idea to change how something works in the world. On its way to becoming a real thing, the team tweaks and adjusts the idea; they make small compromises to the laws of physics, market demands, manufacturing constraints, user feedback, and so on. In the process, the idea goes from a “perfect” imagining of the vision to a pretty good embodiment that can be used by people in the real world.
At least that’s the ideal. However, sometimes a product changes so much that its original vision becomes compromised. One of the best examples I’ve seen of this happened to one of the attractions in the Magic Kingdom theme park at Walt Disney World: Walt Disney’s Carousel of Progress. This is one of the few Disney attractions that have Walt’s name on them. There’s a good reason for this. The Carousel was the highest expression of his particular genius: using new technologies to convey big ideas to the masses in ways that they could connect to at an emotional level. Some people say it was his favorite attraction.