Studying neuroscience! Specifically going through Molecular Neuropharmacology: A Foundation for Clinical Neuroscience, which does a deep dive into different neurotransmitters and receptors among other things. Creating Anki cards as I go. I'm working on this for a bunch of reasons including hopes that it will help build a foundation I can use for letting me reduce mental properties people talk about down to neuroshit. More idealistically: it seems that almost no one in history has known what they actually are and that knowing this will (in some unknown way) positively change my life.