Idea: Stock market gambling and trading in casinos (because stock exchanges will soon be open 24 hours/day), both at kiosks and at a sports-betting-like ticket counter (for events such as company earnings calls and federal inflation reports). Also: trading options/crypto/currency/etc.; drunk multimillionaire old men getting stock tips from 20 year old strippers and casino hostesses with ample cleavage; people gambling away their retirement savings in like 20 minutes; the shared joy from nearby strangers when you hit a jackpot could now apply to something with a greater than 50% odds of winning
