A Taxonomy of Cognitive Stress

I have been thinking about UI design lately. With some help from my friend Rob Landley, I’ve come up with a classification schema for the levels at which users are willing to invest effort to build competence. The base assumption is that for any given user there is a maximum cognitive load any given user… Continue reading A Taxonomy of Cognitive Stress

The Delusion of Expertise

I learned something this weekend about the high cost of the subtle delusion that creative technical problem-solving is the preserve of a priesthood of experts, using powers and perceptions beyond the ken of ordinary human beings. Terry Pratchett is the author of the Discworld series of satirical fantasies. He is — and I don’t say… Continue reading The Delusion of Expertise

Categorized as General