I am old. Fact.
My evidence:
1. My back hurts.
2. On Friday nights, I'm excited to go to bed early and sleep in.
3. I made a reference to the Archies Saturday morning cartoon at a meeting last week and got blank stares from everyone (however, my "you probably watched HeMan" observation earned five minutes of excited Masters of the Universe related chatter).
4. I can eat pie for breakfast and no one lectures me.
5. I won't wait in line for a table at a restaurant.
6. My whole body hurts if I sleep on the floor.
7. My resume is three pages and my references list is too.
8. My nephew and his wife are having a baby.
9. When a friend gets a new car, my first question is about the gas mileage (second is the warranty), not color or power.
10. I have life insurance and a will.
11. Don't get me started on gray hair and wrinkles.
12. All movie plots, TV scripts, songs, etc. remind me of ones I've already seen/heard.
13. I give unsolicited advice.
Of course the biggest tell is my new found urge to complain about being old and all the accompanying ailments.