3 ms·
Earth came quite late to the party and it spawned life relatively soon after. That's why it's strange we haven't discovered any Dyson spheres/swarms (in any ga
by yreg 4y ago
Earth came quite late to the party and it spawned life relatively soon after.
That's why it's strange we haven't discovered any Dyson spheres/swarms (in any galaxy).
Either life is indeed absurdly rare, or Dysons are impractical for some reason, or there is a way to mask heat.
- tuatoru 4y agoEarth life uses lots of different elements - at least two generations of supernovas required. Not really that late if you allow for that.
- yreg 4y agoDidn't that happen within like the first 2B years? First Sol-like systems were I think at 5B years, which would still make Earth ~3B years late to the party.