Einstein Brothers Bagels, Wilkins Township.
A weathered man with a red face and a white beard sits at a table, drawing diagrams and jotting notes on crumpled paper. Deep in thought, he periodically mutters to himself:

Weathered Man: That’s the entire population of Earth in the 20th century!
— Dr. Martin Luther King …
— 31127 … 5 …
— Roosties … [Mumbles] … roosters are golden; they just don’t know …
— Pittsburgh! …
— Connect six-six to six U …
— You’ve got to be joking! …
— Henry the 19th! Killers. There are only 23 that count, and they’re all killers.

— Overheard by zig