"One of the surest of tests is the way in which a poet borrows. Immature poets imitate; mature poets steal; bad poets deface what they take, and good poets make it into something better, or at least something different. The good poet welds his theft into a whole of feeling which is unique, utterly different from that from which it was torn; the bad poet throws it into something which has no cohesion. A good poet will usually borrow from authors remote in time, or alien in language, or diverse in interest." T.S. Eliot
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I think the Manet/Picasso comparison doesn't really make much sense in the context of the products in this thread. In modern painting ( and Manet is already close to modern painting period), the subject is considered very secondary, it's called "figure imposée" in academic painting. It's a bit like standards in jazz.
These are figures that everyone uses , standard figures ( that includes things like bowl of fruits, people sitting in a chair near a window, elongated semi-nude ( or nude ) women bodies lying on a bed, etc..) . There must be hundreds of thousands of great paintings representing the same bowl of fruit. They are not copying or stealing the painting, because it's a standard figure. Picasso is not stealing or even copying the "déjeuner sur l'herbe" from Manet, he is using a standard. Using the same themes and figures as everyone else helps make your aesthetic message clearer because you are putting your
perception of the world forward, and not scrambling it with the "message" or the theme.
So, Picasso is using the same theme as Manet ( who is himself using the same theme as
Tissot and
Titien ), but his perception of that theme is radically different.
In the context of designing an utilitarian product like a computer or a phone, the stakes are different.You cannot re-interpret designs any way you want, because , well, there are such things as the laws of physics : the product you are designing has to exist in the physical world, not solely as a representation, it has to be used by humans, it has to conform to technical norms and regulations, etc..
In a way, what Ive is doing with Braun is almost the opposite. He is taking the same design and imposing a different theme ( utility ) on it. Wich does indeed take a lot of creativity. It's not that obvious to contemplate the shape of say, an oven, and imagine those parts serving a different function, such as parts of a computer.