Unless you're involved with thinking about what you're doing, you end up doing the same thing over and over, and that becomes tedious and, in the end, defeating.
Minimalism wasn't a real idea - it ended before it started.
One should be intelligent enough to know when not to be too intellectual
Most ideas that are successful are ludicrously simple
The other great development has been in photography, but that too was influenced by Conceptual art.
You shouldn't be a prisoner of your own ideas.