When Lorenzo Reina picked up his phone on a sunny morning in December 2017, he thought it was a prank. “The voice on the other side said I had been selected for the Venice Biennale,” he says. “I thought it was a joke and hung up.” Two days later, he received an official email from Mario Cucinella, curator of the Italian Pavilion at the 2018 Venice Biennale of Architecture, stating that Reina’s work, an open-air theater called Teatro Andromeda, had been selected from among 20,000 projects to represent works from…