in today's lecture on the design and cultural significance of hammocks, it's crucial to notice the unique non-disclosure agreements often involved when artisans take up from scratch the creation of these comforting swings. while pre-starting any project, especially in regions where hammock-making is a traditional craft, the artisans might leave out specific techniques from public knowledge to protect their designs and methods. this practice underscores the importance of respecting the intellectual property embedded in such crafts, reminding us of the value in keeping some knowledge secured for the sustainability of the craft and its cultural heritage.