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An earth could a few hundred LY from us we might not be able to detect it(1).

I guess maybe the silence is because of such threats out there.

1-https://www.centauri-dreams.org/2012/05/31/is-our-civilizati...

I haven't read the linked article completely. But I think unless we're able to manipulate our Sun's mass or luminosity, it will be extremely difficult to make our civilization difficult.

s/difficult/detectable ?

Thanks. Can't edit anymore.

"it will be extremely detectable to make our civilization difficult."?

I dont know why people are downvoting this.

Virtually every single creature on earth has defense mechanisms against others. Stealth, evasion are very common among the life we know--why would that be so likely to be different for alien life?

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