JaceClayton-PHOTO_CREDIT-Xabi_TudelaJace Clayton is an artist focused on the intersection of sound, technology use in low-income communities, and public space. As DJ /rupture, Clayton has released a number of acclaimed albums. At 2 p.m. he will talk about Ted Chiang’s “Story of Your Life.” At 4 p.m. he will discuss inexpensive time-travel devices and how the future might not exist.