LPS graduate student Sam Fletcher will speak at four European universities this fall, on topics related to his dissertation. Three of the talks concern "reduction," which is a relationship that may hold between different physical theories--including our current theories and previous theories that they have replaced. Reduction relations between theories help us understand why old theories, which we no longer accept, could be successful for a long time, as, say, Newtonian physics was (and continues to be). These talks will be hosted by Cambridge University, Oxford University, and the London School of Economics. The fourth talk, which will be take place as part of a conference called "The IV Madrid Workshop on New Trends in the Philosophy of Science," hosted by UNED Madrid, will address how to interpret strange features of physical theories given that our measurements are not perfectly precise.