I think everyone did a great job with their presentations in the first week, and I learnt a lot of things that I had very little information about. If I had to pick a favorite, it would be the presentation on geometrical phases by Greg. Even though I do not have a strong physics background, I was able to follow most of the talk. Specifically I really liked how he tried to explore things like classifying bundles, and the relationship between entanglement and certain homotopy groups of spheres.