User Expectations: Create an Illusion of Space

For me, personally, the title was somewhat misleading. I expected to read an article about how to create the impression of much (white-)space in your user interface design, maybe for avoiding that the site looks overloaded.

However, the article is just about creating the "illusion of physical space". That is, users should get the feeling that working through your business process is as intuitive as walking though a physical space - without strange loops, or the inability to go back, or other unpleasant surprises.

It is a bit ironic that an article about user expectations ruins the user expectations of its potential readers (by failing to choose an appropriate title).