Mother Nature is a great equalizer, so it seems. This may be our just desserts for messing her up so badly ... but I hope not!There isn't a person alive who has experienced anything like what they are about to witness.
Perhaps those who were victims of the holocaust but there have been massive pandemics that none of us remember.
The plague of Justinian when global population was less than 200 million killed 30-50 million.
The bubonic plague of 1350 when global population was 360 million killed 200 million.
Smallpox in 1520 killed 52 million when the population was 450 million.
The third plague of 1855 only killed 12 million when the population was 1.5 billion.
Spanish flu of 1918 (which didn't come from Spain) killed close to 50 million.
HIV/AIDS has killed 35 million.
There have been lots more pandemics in between those and earlier in history.