Veronika Hubeny, a professor of physics at the University of California, Davis, was the only woman on the panel, moderated by the philosopher Jim Holt. She didn’t get much of a chance to speak during the first hour of the discussion, and when she finally did begin to talk, Holt cut her off several times and described some of her own theories for her — hence the “mansplaining" charges. An audience member finally asked him to let Hubeny speak, to applause and cheers. (That audience member, an actress and disability rights activist, has since said on social media that she spoke up because no other scientist had.) Holt said he was getting heckled but apologized for talking "too much."