Einar@lemmy.zip to Astronomy@mander.xyz · 3 days agoAliens Probably Exist - But They’re Staying Silent For a Reasonwww.popularmechanics.comexternal-linkmessage-square31linkfedilinkarrow-up145arrow-down115file-text
arrow-up130arrow-down1external-linkAliens Probably Exist - But They’re Staying Silent For a Reasonwww.popularmechanics.comEinar@lemmy.zip to Astronomy@mander.xyz · 3 days agomessage-square31linkfedilinkfile-text
minus-squarekalkulat@lemmy.worldlinkfedilinkEnglisharrow-up3·2 days agoWhen I look back on human history, I can see no period that I would call ‘civilized’. (Sure, there were pockets of civilization.)
We’ve had at least 7 of them
When I look back on human history, I can see no period that I would call ‘civilized’. (Sure, there were pockets of civilization.)
Explain this.