That assumption informs Tim Blake Nelson’s bleak dystopian drama, And Then We Were No More, now making its world premiere at La MaMa. Buckle up, they communicate with their steely expressions, this is a night of very serious drama about very important ideas. Deemed “beyond rehabilitation,” the inmate has opted to be executed in a special machine that purportedly delivers a painless death. Jennifer Mogbock plays an agent of the investment firm bankrolling the death machine who has arrived to observe its use. AI and accompanying technologies will radically change our world in the coming decades, with culture and policy breathlessly struggling to keep up.