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
More real than living man He will watch from dawn to gloom The lake reflected sun illume The yellow bees in the ivy-bloom Nor heed, nor see, what things they be; But from these create he can Forms more real than living man. Percy Bysshe Shelley, Prometheus Unbound The Nature and Aesthetics of Design making