This tends to be supported by the fact no one has received any radiosignals from "them."

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This tends to be supported by the fact no one has received any radiosignals from "them."

This tends to be supported by the fact no one has received any radiosignals from "them."

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September 17th 18, 11:14 PM posted to sci.astro.amateur

RichA[_6_]

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This tends to be supported by the fact no one has received any radiosignals from "them."

Radio signals radiate out in a spherical shell. Presuming (because we have no evidence either way) that advanced civilizations would have (if they formed like they did on Earth) started broadcasting 200-500 years ago, and given the number of stars in the vicinity, we'd have picked up something by now. We haven't.

https://www.cloudynights.com/article...-paradox-r3162

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