I think your "what could have been" brainstorm is interesting but I don't think you are promoting artists to affect change in wasting less, for eg., you cite all this waste in the evolution of 35mm as the basis of reflection for analysis of future benefit, but when presented with much more wasted media in analog photography (eg 20% or so of a analog printed photo generally contains a white border i.e. WASTE), yet I don't hear you caring about that. You seem to be reveling in the fact that yes 35mm might have waste when compared with say 120 film, but you don't seem to be genuinely promoting this revelation of the concept of waste-in-artistic-process to waste less. You seem to be pointing towards history as the cause of excess waste and throwing your hands up in the air with distaste for how the 35mm camera evolved to be so wasteful.