When I first heard of SETI@home, I thought that it was a neat idea, but now that I have owned a computer for a couple of years and experienced crashes
and data losses and having a considerable amount of money invested in my modest system, I have to take such caveats as these seriously:
The applications run by SETI@home may cause some computers to overheat.
SETI@home and University of California assume no liability for damage to your computer, loss of data, or any other event or condition that may occur
as a result of participating in SETI@home.
setiathome.berkeley.edu...

Not only this, but the methodology of SETI seems extraordinarily haphazard by its very nature, regardless of how rigorous the science.
Regardless of how many computers are crunching the numbers, the likelihood of actually catching a signal from an extraterrestrial civilization, given
all the variables and provided that there is actually one out there somewhere, seems, well, beyond astronomical, even if that civilization consists
solely of Carl Sagan clones.
[edit on 2005/12/15 by GradyPhilpott]