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
When our forces are resolved When a person’s forces are resolved, it makes us feel at home, because we know, by some sixth sense, that there are not other unexpected forces lurking underground. He acts according to the nature of the situations he is in, without distorting them. There are no guiding images in his behavior, no hidden forces; he is simply free. And so, we feel relaxed and peaceful in his company. Each of us knows from experience the feeling which this quality creates in us. And for this reason, each one of us can also recognize this quality when it occurs in buildings. Christopher Alexander, The Timeless Way of Building The doctrine of salvation by bricksA sense reflected in the plans happiness