Chapter 4: Knowing What to Do
Summary:
The author begins by using the example of a Lego motorcycle to explain the importance of physical, semantic, cultural, and logical constraints. After other examples related to doors and switches, the author discusses visibility and feedback as other relevant principles.
Discussion:
I can agree with the ingenuity of Lego's. I hardly ever looked at the instructions as a kid and because of Lego's good design it was easy to tell where things should go.
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