Is there an intersection between HNers and jugglers? I've been teaching myself contact juggling for... quite some time. I picked it because it was so far out of my comfort zone.
I spent hours a day juggling for ~4 years in my mid teens (in my 30s now) and got up to juggling 8 balls.
I find numbers juggling (say 5 or more) to be almost therapeutic. It requires a reasonable amount of physical exertion, and it just pulls you into a flow state. All of your mental and physical focus is concentrated on maintaining this ephemeral pattern, and there's no room for anything else... until the pattern falls apart :-)
Probably. When I lived in the bay area, I juggled at the San Francisco circus center: http://circuscenter.org/juggling
and there's also a juggling club in Berkeley: https://berkeleyjuggling.org/
Many jugglers I've met there worked in IT/software-related jobs.
