How do we organize life? What are the ways in which we capture knowledge and attempt greater understanding? The artists in this episode - Mathew Ritchie, Fred Wilson, Richard Tuttle and Roni Horn - create systems, shift contexts and engage with perception, utilizing unconventional devices. The hour concludes with an original piece of video art by Teresa Hubbard/Alexander Birchler, a unique and poetic meditation on the idea of structures. Sam Waterston hosts.