Learning should take place when it is needed, when the learner is interested, not according to some arbitrary, fixed schedule

If you think of the product as a service, then the separate parts make no sense - the point of a product is to offer great experiences to its owner, which means that it offers a service. And that experience, that service, comprises the totality of its parts: The whole is indeed made up of all of the parts. The real value of a product consists of far more than the product's components.

I believe that the Apple Shuffle is an excellent compromise among the conflicting requirements of simplicity, elegance, size, battery life, and function

Market segmentation s a natural result of the vast differences among people

The designer has an obligation to provide an appropriate conceptual model for the way that the device works. It doesn't have to completely accurate but it has to be sufficiently accurate that it will help in both the learning of the operation and also dealing with novel situations.

You won't catch me giving clear lectures.

Am I an Apple bigot? No. I can critique their products and their customer service philosophy. But overall, they do better than any other player.