I know that some newer WDW fans think that Horizons has been talked about <i> ad nauseum</i>, but this article may help shed some light on what this attraction was and why it is beloved.
http://www.mouseplanet.com/mark/mg040414gm.htm
I happen to think that Horizons and Spaceship Earth were/are the heart of Epcot. The former was sorely missing when I last visited.
http://www.mouseplanet.com/mark/mg040414gm.htm
I happen to think that Horizons and Spaceship Earth were/are the heart of Epcot. The former was sorely missing when I last visited.