Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
rsynnott
on Nov 4, 2021
|
parent
|
context
|
favorite
| on:
Timeline of the Human Condition
The older stuff largely isn’t carbon dating; other isotopes are lower resolution but more useful in very long timescales.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
