First, nobody eats wheat just raw. Usually it's prepared in some fashion so that it can be eaten, and cooking, like baking bread, is a form of engineering. As

First, nobody eats wheat just raw. Usually it's prepared in some fashion so that it can be eaten, and cooking, like baking bread, is a form of engineering. As you mention fields, they are in fact an ancient invention to allow farming, and most importantly, an artificial invention. Nobody gets a full belly from the 3 plants in a window pot. One has to do large scale agriculture to feed large numbers of people, and this has been conducted for millenia. A field is at the very basis of agriculture. In order to make land arable, we've cut down forests, moved stones, drained swamps, leveled terrain, built irrigation systems, etc. Basically engineering work. Fields do look like nature, but they don't represent nature. Wild type nature looks different. TLDR: Humans are engineers. Always have been.