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am_Unition  ·  505 days ago  ·  link  ·    ·  parent  ·  post: Mystery cosmic radio bursts pinpointed

If I was cool enough, I would come up with a way to strategically position huge amounts of matter falling towards a supermassive black hole such that it emitted a coherent signal perhaps not terribly dissimilar to this one.

So we don't know that it isn't aliens. But probably not, yeah, and a meaningful intergalactic exchange isn't really possible anyways.