The difference between subjective time and objective time is widely known: The engineers had concentrated on reducing objective time; the designer concentrated

The difference between subjective time and objective time is widely known: The engineers had concentrated on reducing objective time; the designer concentrated on reducing subjective time. Reducing subjective time works. -- http://www.asktog.com/papers/magic.html http://www.asktog.com/papers/magic.html I believe that the design decision in the MacIntosh to have a single mouse button was because it was objectively faster.