Astronaut Upgrade Program

If we condense the 13.7 billion years of the universe into one day, then -

The earth was formed at about 4 pm on this day

Dinosaurs were born at 9:20 pm

And became extinct at 11:53

And human civilization was born at 11:59:59.96 midnight on this day

Measured by the scale of the universe, all the glory of mankind is just this 0.04 seconds

Human existence is indeed only a moment, but human courage makes it the most glorious moment.