This document contains notes from a philosophy class discussing the problem of free will and determinism. It summarizes Professor Hicks' lecture which explored determinism at small and large scales, and how scaling up introduces more complexity, ignorance of conditions, and potential indeterminism. It then discussed Hume's compatibilism, which argues that necessity is just predictability and not a secret power, and that freedom involves a lack of constraint on what one wants to do. Compatibilism holds that as long as our actions are determined by our own choices, there is no conflict between freedom and determinism.