Marshall Ball New York University Website Research Fellow Program: Meta-Complexity Dates of Visit: Jan. 10–May 31, 2023 Marshall Maynard Ball completed his PhD at Columbia University, where he was fortunate enough to be advised by Tal Malkin. In the midst of his doctoral studies, he spent two and half years visiting the FACT Center at IDC Herzliya, Israel. Program Visits Meta-Complexity, Spring 2023. Research Fellow. Cryptography, Summer 2015. Visiting Graduate Student.