The thinking of John Cage derived from Duchamp and Dada. I was not interested in that.
During the '70s I was interested in words and meaning as a way of making art.
The idea part is simple but the visual perception is complex.
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.
All intervening steps, scribbles, sketches, drawings, failed work models, studies thoughts, conversations, are of interest. Those that show the thought process of the artist are sometimes more interesting than the final product