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<blockquote data-quote="Umbran" data-source="post: 6254813" data-attributes="member: 177"><p>It is a bummer, and one clue that perhaps FTL isn't possible.</p><p></p><p>Or, if it is possible, that interstellar material commerce and conquest are simply not economically viable. It may be the only thing of sufficient value to trade across these distances is information, and a civilization isn't worth contacting until they have figured out FTL communication. There could be a galaxy of folks chattering away on the hyperwave radio...</p><p></p><p></p><p></p><p>If they use a lot of radio, yes. Eventually, if we get really good at doing spectroscopy of exoplanet atmospheres, we might be able to infer their presence by their impact on their atmosphere....</p><p></p><p></p><p></p><p>At the moment, there's no known way of signalling faster than light. So, yeah, we'd have to wait until our signals got to them (and theirs to us). </p><p></p><p></p><p></p><p>Yep. Though, the Milky Way galaxy alone could have hundreds or millions of civilizations. The universe is so big it would have gazillions...</p><p></p><p></p><p></p><p>You can't strictly speaking prove a negative. You can't prove we'll never find another civilization, or that if we do, we'll get nothing of value from them. SO, we cannot say if it is pointless. So long as we don't *know* it is pointless, it seems to me we should try.</p><p></p><p>This being NASA's Remembrance Day, you aren't going to see me saying we shouldn't try, darn it!</p></blockquote><p></p>
[QUOTE="Umbran, post: 6254813, member: 177"] It is a bummer, and one clue that perhaps FTL isn't possible. Or, if it is possible, that interstellar material commerce and conquest are simply not economically viable. It may be the only thing of sufficient value to trade across these distances is information, and a civilization isn't worth contacting until they have figured out FTL communication. There could be a galaxy of folks chattering away on the hyperwave radio... If they use a lot of radio, yes. Eventually, if we get really good at doing spectroscopy of exoplanet atmospheres, we might be able to infer their presence by their impact on their atmosphere.... At the moment, there's no known way of signalling faster than light. So, yeah, we'd have to wait until our signals got to them (and theirs to us). Yep. Though, the Milky Way galaxy alone could have hundreds or millions of civilizations. The universe is so big it would have gazillions... You can't strictly speaking prove a negative. You can't prove we'll never find another civilization, or that if we do, we'll get nothing of value from them. SO, we cannot say if it is pointless. So long as we don't *know* it is pointless, it seems to me we should try. This being NASA's Remembrance Day, you aren't going to see me saying we shouldn't try, darn it! [/QUOTE]
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