Silentrunning
Chumono
It is interesting that in this thread people refer to Picasso. In addition to being one of the most prolific artists of all time, Picasso was constantly reinventing himself as an artist. Look at his earlier work and it bears zero resemblance of his work in his middle or later stages. He was always challenging the "rules", and whenever his rules became acceptable or mainstream - he would break the rules again.
I think there is plenty of leeway for creativity in bonsai - as long as someone knows how and why they are breaking the rules. Take for example this tree, which I really enjoy:
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The artist created this redwood bonsai from a rotting trunk of a much larger tree. He took the deadwood of the trunk to suggest a stone cliff-side, while running the live vein of the tree to make the composition look like a root-over-rock.
It is certainly an unusual composition that falls outside of the "accepted" rules of bonsai and does not fit a category. However I would say that it obeys more rules than it breaks, and ultimately it is successful at suggesting a live tree in nature in a small form. This tree tends to be very polarizing at shows - people either love it or hate it.
Thanks BN. You gave a perfect visual representation to my poorly worded question. I came up with the question while studying the literati form. I thought - what if no predecessor had ever thought of literati? What if no one had seen a tall skinny tree struggling to survive against the elements? I was mainly wondering if someone brought a tree like you pictured to a show, what would be the reaction?