I worked at JPL-CalTech for over 35 years as a scientist and spacecraft systems designer. I am now retired but still try to participate in space and physics related activities.
Thoughts about SETI and SETI@home
I have a number of computers that support my consulting work. Several have been programed to run SetiAtHome rather than just sit idle. I think SETI is a long shot but like many long shots the potential payoff is enormous so it's worth a few extra watts on my electric bill to support it. Some years back I participated in series of studies of interstellar mission requirements and technology drivers. SETI played an important roll in setting some of the parameters for those studies. As Pogo Possom observed "Maybe they are there or maybe we are all alone, either way it's a might soberin thought."