re: What's something super obvious that it took you a really long time to notice

quote:

---

A few years ago I learned that Arby's is called Arby's (pronounced RB's) because they make roast beef (RB) sandwiches

---

I can't think of one of my own, but I remember driving on a road trip with a friend in college and mentioned that we were 10 miles from our exit. He asked how I knew that without looking at the GPS. I told him we just passed mile 85 or something and the exit was Exit 95. He had no idea the exits were just the mile marker on the road. He thought they were just randomly numbered.