We’ve done a cool $50 million of R&D on the Apple Human Interface.
We discovered, among other things, two pertinent facts:
- Test subjects consistently report that keyboarding is faster than
- The stopwatch consistently proves mousing is faster than
This contradiction between user-experience and reality apparently
forms the basis for many user/developers’ belief that the keyboard
is faster. […]
It takes two seconds to decide upon which special-function key to
press. Deciding among abstract symbols is a high-level cognitive
function. Not only is this decision not boring, the user actually
experiences amnesia! Real amnesia! The time-slice spent making the
decision simply ceases to exist.