A structure is like a piece of furniture, . . .

"A structure is like a piece of furniture, whereas a process is like the weather. In the case of a table, the beginning and end of the whole and each of its parts are known. In the case of weather, though we notice changes in it, we have no clear knowledge of its beginning or ending. At a given moment, we are when we are. The nowmoment."

John Cage ... The Future of Music (1974) ... (?)