I don't have a solid answer for that except to say that EPCOT was a compilation of attractions that all, in one way of the other, were slanted to indicate how we got from the past to the future. They all played a significant roll in the general mood of FutureWorld. The park Icon, was more of a futuristic external design then a futuristic story line. The Geodesic Sphere was a first in the world if I remember correctly. Nothing previous had ever been built as a complete sphere with no visible internal structural supports other then the shape of the building. But as someone said, Communication, Energy, Land, WoM, Communicore, Imagination and Horizons all complimented each other to create one giant FutureWorld theme. The future means very little without a working knowledge of the past.