If we were perfect and lived forever ...
You'd never ask anyone .... how are you doing today? How old are you?
You'd never use the experssion. "Well that was a waste of time" or "stop wasting my time"
You'd never be able to honestly say " oh I forgot to tell you..." or " I'm starving... lets hurry up and eat "
No one would say, " Doesn't it seem like today is Tuesday??"
Will be laugh about the hilarious cloths we used to wear back in the 2080's (what were we thinking??)
You might have a friend say "Oh I was just thinking about you the other decade ! "
Rather than it being a bad trait, being a procrastinator might be a good thing. ( Oh...I'll get try and get the garage cleaned out in a millenium or two )
Eventually, in a few thousand years there wouldn't be anyone with an interesting accent...we'd probably all sound pretty much alike.
Eventually, in a few thousand years everyone born after armegeddon will be a sort of mocha color rather than having seperate racial skin colors (this is already starting to happen with the availability of world travel) You would always be able to identify the B.A. (before Armegeddon) crowd because they would be distinctly of one certain race.
My son is 25 years younger than I am but when he's 1 million years old and I'm 1million and 25....what difference will it make?
In a few million years there won't be anyone having cute little babies for us to enjoy. The earth will be filled and subdued.
Maybe the big challenge or hardship that will motivate us will be coming up with new ways to keep things interesting.