posted on Jun, 2 2010 @ 04:49 AM
There are some definite problems with SETI...
It's akin to listening for just one small cricket chirping three blocks over while the next door neighbor is testing out his Pioneer subwoofers in
his car with the amp turned to 11. (The Sun, man made radio broadcasts and noise, natural electrical discharges on Earth and other planets.)
We're still trying to listen using the "analog set and rabbit ears" when everyone else is using "DTV with QAM and satellite". (There should be
more effort expanding the search to identify other possible forms of modulation, which currently are hard to discern from random noise. Not to mention
other more esoteric and hypothetical forms of (FTL?) communication that may exist.)
And considering the time humanity has been known to be around, compared to the time we've been able to effectively use electricity, and the much
shorter span of applied electronics technology... And that's before we change to something that doesn't leak radio signals into space. I think to
make the odds work in our favor with existing methods, we'd have to be listening for 40,000 years to have a reasonable shot. The gamble might pay off
for a long-lived civilization, but would seem a waste of money for any normal human lifespan.
In all likelyhood you're going to be listening and not communicating. The civilization making the signal may not be around by the time you recieve
it. Also predicting where a star will be, where a planet will be in orbit around that star, and which way any recievers will be facing before you
bother sending... Having your reply get through will have the same odds as finding the signal in the first place.
The biggest problem is it will be that one day that you stop looking when the "needle in the haystack" finally comes to the surface and glints in
the sun. It's well known the odds of finding anything are zero when you don't bother trying. (The best thing to do in regards to feasibility is
trying to eke out all the efficiency you can without killilng the project outright.)