I don't know about a different league. For one thing, I'm less than half your age. For another, I'm not as in shape as you are (for now). Almost all of the hobbies above are direct offshoots of my dental school training, so it's not like I needed to devote tons of time learning them.

Seriously, school forces one to be either creative and slightly crazy, or a machine. You can guess what category I fall under.

The hobby side business thing is two parts experiment, one part joke, and also a way to make friends. Also, it lets me buy more raw parts to make cool stuff to give to people.

-matt