unclebobmartin on Nostr: Yes, it appears as though the window is pretty narrow. Complex life on this planet is ...
Yes, it appears as though the window is pretty narrow. Complex life on this planet is only 500my old. It took a long time for photosynthesis to oxidize all disolved iron in the oceans so that oxygen could finally accumulate in the air.
From: AlanSiefert<-shawn at 08/16 13:08
> Makes you realize that the time allowed for intelligent life to evolve is actually pretty short (assuming ~4B years between genesis and intelligent life). Probably the reason we haven’t made contact yet - the window is very short. The best chances for contacting intelligent life will probably involve looking for civs that have transcended to Kardashev II+.
CC: unclebobmartin (npub19mu…jnft)
From: AlanSiefert<-shawn at 08/16 13:08
> Makes you realize that the time allowed for intelligent life to evolve is actually pretty short (assuming ~4B years between genesis and intelligent life). Probably the reason we haven’t made contact yet - the window is very short. The best chances for contacting intelligent life will probably involve looking for civs that have transcended to Kardashev II+.
CC: unclebobmartin (npub19mu…jnft)