The other great development has been in photography, but that too was influenced by Conceptual art.
Most ideas that are successful are ludicrously simple. Successful ideas generally have the appearance of simplicity because they seem inevitable. In terms of idea the artist is free to even surprise himself. Ideas are discovered by intuition.
The narrative of serial art works more like music than like literature.
One should be intelligent enough to know when not to be too intellectual
Banal ideas cannot be rescued by beautiful execution.
An architect doesn't go off with a shovel and dig his foundation and lay every brick. He's still an artist.