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
I can only conceive for you I cannot perceive for you. I can conceive for you and we can then in a sense hold a general agreement about quality of conception and we may all operate under it and that's what is known as a common agreement. But the area of perceiving as such is totally individual, there's no way that we carry it in that sense. This is not an antisocial gesture; it is in fact a highly ethical one, since trying to get another person to see what and how you see has the potential to become a violation of the other's own autonomy: There is nothing more unethical than having ambitions for someone else's mind. Robert Irwin, Robert Irwin: A Conditional Art Ambitions for someone else's mind