I was explaining to my 12yo son when he wanted to play video games instead of hanging with the family that I only had 6 more Christmas eves while he lives at home.
Children live with their parents until their thirties nowadays. You mean he still has another 18 Christmas eves left.
That is why life is short. The barriers to young people are growing bigger and bigger. Their adult lives keep getting shorter faster than their lifespan increases.
80 years is not a short period of time by any stretch of the imagination.
The lifetime of a galaxy isn't that much different than 80 years, right? Right? As Lincoln said, everyone's legs are long enough to reach the ground; but even so, mine are short compared to his.