What’s the Baader-Meinhof phenomenon?
Have you ever met someone with a unique first name, and then all of a sudden you hear the name everywhere you turn? That's the Baader-Meinhof phenomenon at work. How did it get that handle?
Substrate
Airlines Won’t Dare Use the Fastest Way to Board Planes
United's latest experiment with the boarding procedure could make things better—but it's no revolution.
Integers such that addition is preserved across _directly_ adding the numerators and denominators