Dmitry bOrlov/b makes the point that post-collapse, most large farms become relatively useless, and that small ( ~< 10 acre) farms that rely mostly on human labor will be the most productive. b...../b This corruption/waste aspect could go a long way to explaining why any EROEI under about 5 will fail to sustain our society whereas in theory only about 1.1 is needed as a bbare/b minimum (ie., 90% of labour invested in energy and 10% in other areas). ...