Timeline for How old do surviving children need to be to keep human civilization from failing?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 31, 2018 at 20:11 | comment | added | Alexander | Thank you, but why the loss of communication should kill autonomous communities? | |
| Aug 31, 2018 at 10:23 | history | answered | alephzero | CC BY-SA 4.0 |