Fall 2022 - If you've taken 172, this class is structured quite similarly with 3 psets and a take-home final. If you're looking at the grade distribution to decide to take this class, I'd take caution as the TA from the previous quarters has left and the newer TA is a bit tougher so it might not be a super easy A as it was before. The content was interesting but was a bit indigestible from the mountains of math and derivations with little talk about practical applications. You're also expected to be able to process a lot of the data that is not taught in class so be prepared for that. The psets are also quite hard and time-consuming and the only advice I have here is to work with others as the book and lectures don't help you at all. Also, the TAs were incredibly helpful albeit everything so email and go to their office hours if you need help! I'd probably stay away from this class unless you're interested in doing research in the field.