We are roaming around a futuristic, geometric construction whose structure emerges in a milky white. But a matter eroded by time is what now appears, lit up by torchlight, like the remains of a lost civilisation that these men dressed in yellow suits are collecting, beneath the gaze of a child concealed behind the vegetation. It is down to the “citrus tristeza virus”— a disease leading to the decline of trees — which struck the families living in this region of Cuba, who survive, now, in the virtual ruins of a former agronomy school inhabited by “New Men” familiar with the latest orange-growing techniques.