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
Irwin Volumes Show image 0 Show image 1 Show image 2 Show image 3 Show image 4 Black Line Volume, String Line-Light Volume, Corridor String Piece, Line Rectangle "The resultant black rectangle was not what you "looked at" – there was actually nothing to focus on – but soon it brought the space into focus with a distinct visual snap. From inside, the light in the area seemed different, more substantial, and the wall color began to shift ambiguously. From outside the area, the tape seemed to lift the plane of the floor upward in your field of vision, and it also made the room seem wider and shallower than it really was." — Roberta Smith Robert Irwin, Robert Irwin: A Conditional Art You are the one that is changed