- Optimization and linear algebra. Super useful for my work. - German and Hebrew. Germany and Israel are the two non-Anglophone countries I spend the most time in, and I'm looking to spend a lot more time in both (when I move to Europe in about a month). I'm kind of embarrassed by how utterly monolingual I currently am. I half-assedly started German on duolingo, and Hebrew is coming to the platform soon as well. - Accordion. I've mentioned it before, but what an awesome instrument! I can be my own band! :) - Driving. I'm too old not to have a driver's license. I've been holding out for self-driving cars, but I'll get sick of my limits about visiting wilderness and countryside well before those regulatory hurdles are defeated. - Yoga. Every time I've attended a yoga class I've come out with good posture for about a day. My problem is that yoga is hella boring! It's not like martial arts, which I find really fun. I really need it, though, because I don't really know how to move or hold my body right now.