If history goes back 6000 years, I have personally witnessed 1% of it. So have you. Just a thought, not necessarily feeling old. The US itself, new as it may be, has been around for 4% of all history already.
"The US itself, new as it may be, has been around for 4% of all history already."
I have relatives that I've know that lived for half the time the US has been a nation. (Of course, they're all dead now.)