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A comment on SETI spots dozens of new mysterious signals emanating from distant galaxy. Parent comment
First, they have mass, hence travel slower than the speed of light, which means they are less effective.
Second, it is very hard to detect neutrinos, which means they are very bad communication medium.
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First, they have mass, hence travel slower than the speed of light, which means they are less effective.
Second, it is very hard to detect neutrinos, which means they are very bad communication medium.