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
Focal awareness The philosopher Maurice Merleau-Ponty describes what she experienced as "being as a thing." The philosopher Michael Polanyi calls it "focal awareness" and recurs to the act of hammering a nail: When we bring down the hammer we do not feel that its handle has struck our palm but that its head has struck the nail. We have become the things on which we are working. Richard Sennett, The Craftsman The inventive process was often a nonverbal oneHe feels the end of the cane identity