"While everything is, technically, an experience of some sort, there is something special to many experiences that make them worth discussing. In particular, the elements that contribute to superior experiences are knowable and reproducible, which makes them designable... These aren't always obvious and, surely, they aren't fool-proof, but it's important to realize that great experiences can be deliberate and based upon some principles that have been proven." more of Nathan Shedroff's Experience Design at WebReference.com ...