weighing competing implausibilities can help us decide which we should back Quardia/Shutterstock IT ISN’T easy to predict where the next leap in scientific understanding will come from. In this week’s cover feature (see “How to wrap your head around the most mind-bending theories of reality”), philosopher Eric Schwitzgebel provides a handy guide to “weighing competing’s”. Much of his advice boils down to whether you prioritise conceptual simplicity over adherence to em