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
Repair Within the larger language, it is impossible for any act not to help repair the larger whole. It is impossible for any act of building to remain an isolated act: it always becomes a portion of the flux of acts which is helping to maintain the whole. Even the laying of a brick, to mend a wall, will not only be used to mend that wall, but will be used to help repair the seat, the terrace, or the fireplace which that wall helps to form. Christopher Alexander, The Timeless Way of Building 104. Site Repair repair