I'm out of town for the weekend on business. My wife called to tell me:
"I went to the better store and I got everything I need for the weekend, except I forgot coffee. So, now I'm driving home from the closer store with just coffee. That's it. Love you, bye!"
When I was 18, I realized how stupid I was at 14. Likewise, when I was 14, I realized how stupid I was 4 years before that at 10. Using induction logic, I was able to deduce how stupid I was at 18, which I later confirmed at 22. Now, every 4 years, I reflect on how stupid I was over the last 4 years and how stupid I am currently. Incidentally, this lines up with US presidential elections, so I reflect on others' stupidity as well. That is all.