I'm not sure how one would extend the ethnographic message of the caption. I think the strength of the caption, also in relation to the overall point of this photo essay, is that it contextualises what at first glance is an almost incomprehensible image, with the scale being beyond the human in a way. The caption does a really nice job of showing how actually for some people this part of their everyday work life, and how it is also part of economic strategies with consequences affecting people far beyond the company, in the form of tax breaks, job availability, etc.
