I started in Physics at MIT, but graduated in Electrical Engineering and went on to work in Telecom (for 20+ years now). I co-founded Natural MicroSystems, later renamed NMS Communications, a leading supplier of technology and solutions to the telecom industry. That occupied me from the late 80s through 2008.
I've now started netBlazr Inc (in May 2010) with a mission to change the face of broadband access with new technology and a new business model.
netBlazr consumes a significant portion of my time, but I still follow physics and have read my way through a lot of molecular biology. When I'm not reading, I've also built a ride-on railroad at my vacation place in Maine where I model 3 foot narrow guage railroad equipment (at 2.5" to the foot) on 7.25" guage track.
Thoughts about SETI and SETI@home
Nothing else about the human condition has turned out to be unique -- as shown by the work of Galileo and Darwin and a string of more recent investigators. So it would be rather conceited to think we were the only intelligent life in the universe.
Finding these other intellegences will benefit mankind as additional knowledge, of any kind, has always provided net benefit for mankind
-- at least in the very long term. :-)