Visiondr,
I don't think his thesis is sound. Well it doesn't make sense to me anyway. Here is what I think is wrong with it...
"The more images one produces, he suggests, the less effort is spent on each one. This is patently true."
What you are saying is effort per EXPOSURE made and that might be. But what if instead, we consider each FINAL, SUCCESSFUL image. 2 photographers may spend a day out shooting. One might spend all day exposing just 3 sheets of film. While another may shoot 5 rolls of 35mm. They go home, and one picks the best neg from his 3 sheets and spends all day getting the perfect contact print from it. The other guy makes some contact sheets, evaluates them for hours and then makes 20 work prints or enlarged proofs to study them further. After noodling around with these for a long while, he selects the one image that really works and makes a final print of that. They each have spent a lot of effort in getting to that one image. Just a different kind of effort.
It's very obvious and simple if he just looked around at all the great work that exists, done by very different methods. Either he hasn't looked or he is just ignoring it.
Cheers,
Gary