Originally a particularly polite way of saying “you,” the Japanese word otaku evolved into a label for anyone with an obsessive, passionate devotion to their hobby. While most commonly associated with anime fans, the term is also applied to hardcore video gamers, technology buffs, and even auto enthusiasts.
Much like “geek,” otaku was initially a derogatory term, but has lost a lot of its sting and become largely co-opted in recent years. Still, it’s important to not let yourself get too wrapped up in your hobbies. Conveniently, there’s now a mathematical formula to determine if your otaku-ness has become too much for your own good.