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I'm going to cheat a little, because this doc is listed as '2020' on Prime, maybe being the date of its American video release.
All Watched Over By Machines Of Loving Grace is a 2011 BBC documentary from the always interesting Adam Curtis (Pandora's Box, Century of the Self), a three hour examination of about a centurry's worth of imploded scientific and ideological hubris concerning everything from eugenics to futurism, and the current anomie ennui from increasing automation. Similar to Social Dilemma in showing the paradox of interconnectedness/solipsistic isolation, this doc has a hearty intellectual appetite that covers objectivism, global finance, Rwandan genocide, Buckminster Fuller, cybernetics, ecology and a host of surprising connections in-between, woven through a montage deluge of images into multiple layers of themes, associations and contrasts, ultimately with the timely thesis that "we have embraced a fatalistic philosophy of us as helpless computing machines to both excuse and explain our political failure to change the world." It doesn't really matter much that the doc is nearly a decade old, as it is deeply prophetic for many of the social and intellectual trends of the last decade, and would still seem as fresh and relevant had it been made last year.
Curtis does have a new doc series this year called Can't Get You Out of My Head, also concerning the vortex of media, politics and perception, and I'm eager to check it out for the 2021 list.