Design as a Conversation

Design is a conversation.  The sentence itself is simple, yet incredibly hard to define exactly.  If design is a conversation, what kind of conversation takes place?  What is this 'design' that is being described?
From what I understand, design is a conversation that takes place everywhere.  People find design from everywhere, and designs develop from reactions and ideas that stem from other designs.  This back and forth conversation of knowledge is a process of design conversation.
Design is also a conversation when certain designs spark interest and conversations in the people who are affected by the designs emotionally, through shock, anger, sadness, etc.  For example, in class, when we watched the video of Lady Gaga and Yoko Ono singing, I was emotionally confused and shocked by the way Lady Gaga was performing.  In this same way, others felt insulted by the way Lady Gaga 'intruded on sacred ground'.  The way Lady Gaga and Yoko Ono designed their performance sparked a conversation that got people talking.
Lady Gaga has also sparked a conversation through the crazy outfits she wears, and her crazy performances.  No matter where she is, she is always 'in character'.  She has completely enveloped her role as an entertainer and dresses and acts her role in everyday life.  Through her actions, she creates conversation because people are constantly discussing her clothes, her actions, and her performances.  Others are also inspired by her strong design choices.  Ultimately, I think Lady Gaga is an important example of design as a conversation.  The way her lifestyle is designed, she is able to inspire others to build and create things off of her work, and she is also able to spark conversations in society.