How do we know they're looking at us when we're looking at them?
Science, even by reputable practitioners, proceeds in fits, starts, and frequent excursions down blind alleys.
You, dear reader, are one in a thousand. The fact that you’re confronting this column on a web site devoted to space science and astronomy makes you roughly as rare as technetium.
“At what point would you abandon the search?” That’s a question I get relatively frequently from folks who think that SETI may be a It's a fair question, but why would we give up?