Clearly Outside the Box

I remember an anecdote told by a professor of engineering at Imperial
College (=solid high quality engineering) that also lectured to
"Industrial Designers" at the Royal College of Art (=solid high
quality art).

He noted that if you asked the designers to produce a design for an
egg, they would produce something that was the size, shape and colour
of an egg, but which was completely empty inside. And they would be
*completely* satisfied with that.

It seems that anecdote can still be still be recycled, with no loss of
validity.