Earth’s lifespan condensed
into one day: then we’ve been
here for three seconds.
–
If we’re going to
make it to the fourth second,
time is now crucial.
–
Of note: Earth is about 4.54 billion years old (1) and our “Anatomically Modern Homo Sapiens” are about 140-300 thousand years old (2). The ‘three-seconds’ mentioned in the haiku is a general estimate.
(2) https://www.sciencedirect.com/science/article/pii/B978012802652600013X
https://www.universetoday.com/38125/how-long-have-humans-been-on-earth/
https://www.nytimes.com/2002/02/26/science/when-humans-became-human.html
https://www.cnn.com/2017/06/07/health/oldest-homo-sapiens-fossils-found/index.html
Our Earth: https://solarsystem.nasa.gov/planets/earth/overview/ (this is very cool).
