Eight billion people in perspective.
https://www.youtube.com/watch?v=Sxejy6jd_zc
Previously:
https://www.homemadetools.net/forum/...788#post194142
https://www.homemadetools.net/forum/...397#post215327
https://www.homemadetools.net/forum/...210#post207881
https://www.homemadetools.net/forum/...251#post204025
https://www.homemadetools.net/forum/...081#post195275
