It was natural for Cahana, then, to find herself working on a project about homeless communities across the United States. Her series Nomad, which she discusses in her TED Talk, is an exploration of the wandering life. She saw creativity flourish in her travels, but she also saw very clearly that it’s not a glamorous existence. “It’s almost impossible to sleep anywhere without being hassled,” she says. “Wherever you are, you’re trespassing. There’s no space in our society for homeless people.”