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When the new Planet Earth (II) came out there was a critique that the tiny slivers of the planet in exquisite 4k and presented on 70 ft screens made those tiny glimpses appear larger than they were. Most of "planet earth" didn't look like that, that most of the world burns. They were right, the "documentary" had increasingly become escapist television. The "reality TV" that is a fantasy of a world that isn't on the edge, that still safely harbors flora, breath, life, isn't choking. Securing some fantastical turf for the "natural" we ostracize to parks and behind 4k glass.
So maybe Lempert's moribund nostalgia is actually a sci-fi, of our present from the future, as it wrinkles and curls and blows out. Tragedy.
See too: Jochen Lempert at Between Bridges