If the Earth is 45 years old
~2 mins read
The earth is about 4.5 billion years old.
Let’s take it to human-scale and say the Earth is 45 years old.
100 million years for us feels like a year to her.
Then the Milky Way is 136 years old,
and Big Bang happened 138 years ago.
By the same scale,
A decade is 3 seconds
a century, 30 seconds
200 years, a minute
1000 years, 5 minutes
300 000 years, a day
A human lifetime is about 20 seconds
For the 45 years old Mother Earth,
Dinosaurs appeared 2 years ago and lived for ~1.5 years
Human species evolved during the last two weeks
Made early stone tools a week ago
Learned to control fire in the last few days
Agriculture started an hour ago (12 000 years)
Sumer, writing, wheel, 30 minutes ago
Ancient Egypt 25 minutes ago
Babylonia 20 minutes ago
Trojan War 16 minutes ago
Rome was found 14 minutes ago
Renaissance 3 minutes ago
Industry a minute ago
WW2 25 seconds ago
Each decade is about 3 seconds, in a 138 years old universe