My vote is for rock climbing. A lot of tech people do it, and it takes serious problem-solving skills. Figuring out how to contort your body to be able to ext

My vote is for rock climbing. A lot of tech people do it, and it takes serious problem-solving skills. Figuring out how to contort your body to be able to extend your reach that last inch towards the next hold, and how to position yourself to move after that, takes a lot of thinking. Plus, it's an amazing whole-body workout.