I am 40, Married, an Industrial Hygienist, and I am a member of the SCCA, and participate in SoloII events.
Thoughts about SETI and SETI@home
1) Don't know, I guess that is what this is all about - to find out.
2) Not sure... It could be a double edged sword, kinda depends on whether or not the ET's are freindly.
3) Because I can. I think it is a good project.