I engage in activities that satisfy my curiosity and aesthetics. I also do things to augment me to be able to engage in the above mentioned activities.
Q&A for professional mathematicians
Q&A for people studying math at any level and professionals in related fields
Q&A for active researchers, academics and students of physics
Q&A for professional linguists and others with an interest in linguistic research and theory
Q&A for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry
Q&A for those interested in logical reasoning