Website Response Times An Article by Jakob Nielsen www.nngroup.com Users really care about speed in interaction design...A snappy user experience beats a glamorous one, for the simple reason that people engage more with a site when they can move freely and focus on the content instead of on their endless wait. 0.1 seconds gives the feeling of instantaneous response. This level of responsiveness is essential to support the feeling of direct manipulation. 1 second keeps the user's flow of thought seamless. 10 seconds keeps the user's attention. A 10-second delay will often make users leave a site immediately. uxperformanceinteraction
Walking is a natural armature for thinking sequentially Walking is a natural armature for thinking sequentially. It also has a historic relationship to mental organization that ranges from the Peripatetics, to the philosophers of Kyoto, to the clockwork circuit of Immanuel Kant, to the sublimities of the English Romantics and their passages through nature. It is not simply an occasion for observation but an analytic instrument. Michael Sorkin, 20 Minutes in Manhattan Reveries of a Solitary Walker walkingthinking