Synthesized answer
The provided passages do not contain information about what questions remain unanswered in "The Design of Everyday Things." The passages focus on the book's core arguments about product design, user needs, and the principles of good design, such as making things visible and exploiting natural relationships between controls and functions [1, 2]. They explain why some products satisfy customers while others frustrate them [2].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Design of Everyday Things by Don Norman Description: One of the world's great designers shares his vision of "the fundamental principles of great and meaningful design", that's "even more relevant today than it was when first published" (Tim Brown, CEO, IDEO). Even the smartest among us can feel inept as we fail to figure out which light switch or oven burner to turn on, or whether to push, pull, or slide a door. The fault, argues this ingenious -- even liberating -- book, lies not in ourselves, but in product design that ignores the needs of users and the principles of cognitive…
the right action on the right control at the right time. The Design of Everyday Things is a powerful primer on how -- and why -- some products satisfy customers while others only frustrate them. Categories: Design Pages: 370 Snippet: The goal: guide the user effortlessly to the right action on the right control at the right time. The Design of Everyday Things is a powerful primer on how -- and why -- some products satisfy customers while others only frustrate them.