A discussion came up at the office today that got me wondering.
Do any of you know the history of the 'Power' Icon? You know the one: The
circle with the vertical bar pointing up and overlapping the top edge of the
circle.
This icon was being incorporated into an interface and the argument was made
that "not everybody is going to know what that icon means"
That's totally possible. If anything stands out as a good example of the
statement that there are no intuitive interfaces -- all interfaces are
learned -- it's this icon.