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
Michaelangelo's hammer A young man named Michelangelo stands in front of a huge granite monolith. He stands there at a time in history before the technologies that brought us the hammer and chisel have occurred. He gazes at the rock. He dreams his dream and the best that he is able to say is, What a wonderful stone you are. … Michaelangelo now stands in front of the same rock. Thrust into his hands are a hammer in one and a chisel in the other. He looks at his hands, at the technological tools that they hold, and gazing at the same stone, with epiphanic zeal, says I must let Moses out. Richard Saul Wurman, Understanding Understanding Constrained by the medium tools