[TheZookie007]

...you remember the lynching of Emmett Till when it happened.

...you realize that the woman who falsely accused him of the "crime" of whistling at her, leading directly to his murder, is still alive and well, and has never faced the consequences of her actions.

...you realize this:

[Liam]

When you become aware that there are fewer days ahead than there are behind.

^It's no big secret that I stole that from Star Trek: Generations (1994).  I had just turned 27, so it wasn't true for me at the time, but I've been watching the clock ever since and it's certainly true now.   

[Liam]

The first time you see your sister after she's decided to let her hair go gray.     

[solvegas]

When you see photos of your grandparents and you are older than them. 

[TheZookie007]

When you see photos of your grandparents and you are older than them. 

That's not likely to happen to me for quite some time. But one day it will.

[TheZookie007]

When you become aware that there are fewer days ahead than there are behind.

^It's no big secret that I stole that from Star Trek: Generations (1994).  I had just turned 27, so it wasn't true for me at the time, but I've been watching the clock ever since and it's certainly true now.

Ah, sad but true.

[Hiram]

When you see photos of your grandparents and you are older than them. 

I'm nearly as old as my father when he died. That's going to be feel weird.

[solvegas]

When the facts that you learned years earlier when you were much younger get mixed in your mind and you spew out wrong information without realizing it.