Perfection is an interesting one. It states:

> “A perfect interface is one which is impossible to use incorrectly, even by accident.”

It illustrates the point by showing how a non-expert can build a complex model from well-designed parts without even knowing what the end result should look like.

But then later:

> "... Even an ugly, rickety shed would be more useful than a hypothetical, flawless pagoda."

Documentation represents the compromise between a perfect interface and shipping pressure. The gap can be minimized but never eliminated.