Dr. Timothy Rutzou conducted another interview with Professor Stephen Mumford after the Causal Powers and Social Sciences Conference. In this interview, Mumford discusses his upcoming project called “Nothing Really Matters” and shares how the metaphysical conundrum of nothingness and causation by absence has intrigued him since his early days in graduate school. The example Mumford gives to illustrate this is the absence of water for plants. How can nothingness do something? How can absence have a causal power?