'Oumuamua is long gone—out of sight and almost impossible to reach. The excitement over it generated endless fascination about what (and who) might be out there. Ultimately, that’s what this search for extraterrestrial life represents—a series of questions that don’t have good answers and may never have them, not now, not in another millennia. So why search? What does it matter? What are we hoping to find? And what does it mean if we don’t find anything at all?

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