John, I don't think entropy was a good word for this. Colloquially people tend to use the word entropy to signify any tendency toward disorder or randomness, so originally I assumed you were asking about leaving things to complete chance without a pre-defined image or result in mind - eg: point the camera anywhere without viewing, leave the shutter open for two days and "see what happens", or on the technical side - dump some coffee into spent A130 and "see what happens". That sort of thing. But I'm not entirely sure what you mean.
I tease john a lot because many of his abstracts look just like your description hehe
However I know John is a very skilled manipulator of image and light.