this be a documentary i come across by chance on the uk tv channel more4 and i have to say i find it extremely interesting and think provoke . i will also be seek out the book that be the source material for this documentary . basically this be professor jared diamond theory on why certain part of the earth society prosper and others do not . the argument he present be new to me and argue about how the fortune of the right crop and the right animal that where able to domesticate be certainly a compel one . a for the documentary itself it be well shot and well narrate with not to much of the re create scene that spoil many a modern documentary . diamond also help by not be to condescend which be a fault of a lot of intellectual when try to get a message to the mass . people have claim his theory be marxist but i do not buy this and see it more socio geologist . it be also refresh to hear an theory on the evolution of society not base around religion . highly recommended viewing .