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In this brief video, Dr. Talithia Williams talks about zero -- the value of nothing. She explains that “by giving ourselves permission to sit and ponder about nothingness and to give it structure, to give it a value -- we also give ourselves permission as a society to think about hard things and complex things.” We can think about the absence of things, about what is happening in the universe that we cannot see and where we cannot go. We can explore the nothing of dark energy, magnetic fields, gravitational forces, or E=mc2. “When you denote that nothing with a symbol -- say, ‘0’ -- it suddenly becomes very valuable.”