Since the 1960s, Giuseppe Penone’s work has been based on an osmosis between the vegetal and human worlds; his forms are marked by time and are always dependent on the relationship between nature and the artist’s body, and above all on a certain spiritual quality that allows him to perceive the secret rhythm of natural flows. And yet with this exhibition, “Equivalenze” (Equivalences), I was unable to avoid an off-putting feeling of chilling formalism. The show features some materials familiar from Penone’s work, such as terra-cotta, and some that are new, such as micro-drilled oxidized brass,