Karen Crowther is a postdoctoral research at the University of Geneva, where she is investigating questions related to scientific theory-change, and in particular the non-empirical guides being used in the search for a new theory of physics. Before this, she was a postdoctoral researcher at the University of Pittsburgh, and before that, she obtained her PhD in philosophy from the University of Sydney. Karen is the author of “Effective Spacetime: Understanding Emergence in Effective Field Theory and Quantum Gravity” (Springer, 2016), which develops a novel account of emergence in physics and explores its potential applicability in the context of quantum gravity. She also holds a BA (Hons.) in philosophy, and a BSc (Hons.) in physics, from Monash University, Clayton.