"It looks very, very doubtful, which is a shame from several points of view," said Shostak, a senior scientist at the SETI Institute in California. "But that's the way science is. People make claims that often don't hold up. That's the nature of science."
"It has the advantage that you can point it where you want to point it and you can keep pointing it in that direction for as long as we want it to," Shostak said.
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