In the university, professors make up artificial problems. In the real world, the problems do not come in nice, neat packages. They have to be discovered.

Isn't one of your first exercises in learning how to communicate to write a description of how to tie your shoelaces? The point being that it's basically impossible to use text to show that

I'm not a fan of technology . I'm a fan of pedagogy, of understanding how people learn and the most effective learning methods. But technology enables some exciting changes.

What makes something simple or complex? It's not the number of dials or controls or how many features it has: It is whether the person using the device has a good conceptual model of how it operates.

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.

Also note that invariably when we design something that can be used by those with disabilities, we often make it better for everyone

Design is really an act of communication, which means having a deep understanding of the person with whom the designer is communicating.