What Have You Done Elo?

Arpad Elo just wanted to make chess tournaments more fair, and now his mathematical rating system is literally determining who gets matched on Tinder. The guy was a physics professor who created an elegant probability-based system to rank chess players in the 1960s, and it worked so well that it spread to competitive gaming, esports, and then... romantic compatibility algorithms. Because nothing says "true love" quite like a statistical model originally designed to predict if you'd beat someone at chess. The progression from "I need to rank grandmasters" to "let's use this to decide if Brad sees your profile" is genuinely wild. Dating apps basically looked at a system meant to calculate expected chess match outcomes and thought, "yeah, this'll work for human attraction." Thanks for the unintended consequences, Dr. Elo.