At first the antique quality of the footage could be artificial. It’s as if a crafty editor has applied a filter to give the impression of film from an analogue camcorder. The horizontal bars of colour distortion jumping in and out. The image skewing and flickering like a candle flame in a draught. It’s pretty convincing.

The timestamp, too, could have been superimposed on a very recent recording, tricking the viewer to believe that these scenes were filmed an age ago.

But then there’s the...