An inch deep and a mile wide. I've worked in Objective-C for almost 5 years. Before that, Java. Before that, Excel. Before that, BASIC. My Mac experience goes back to 1994 with a Performa 363CD. My programming experience goes back to 1989 when I got a used Ti 99 4A. That thing was a beast. But it had Star Trek!
In college I studied Statistics, Computer Science and majored in Economics, with a concentration in discrete simulations. My dissertation regarded declining fish populations in the Atlantic.
Today I work in compiled and interpreted code on the web and on the die. I write ad-hoc apps for a company near Sacramento, California. Every day is a new challenge.