What are your (non-hn-related) hobbies?
mcantor: I highly recommend fencing.  It's a spectacular workout, and the three different weapons provide unique experiences, one of which will certainly cater to your intellect or personality.  Foil is highly strategic, épée is much less rules-oriented and the most like a "real" duel of the three, and sabre is extremely fast-paced.The only downside is that competing can get expensive, but the exposure to so many different fencing styles is worth it.  All three weapons are fun and intellectually stimulating to study, and the community is universally supportive.  I think it's an excellent "hackers' game."My other hobbies: drawing & painting, writing & reading (always reading), finding new music to listen to, video games, and poker (another great game with deep strategy behind it).