Credit Card Reward Game Explained, A False Prophet, and AI Bubbles

Using Premium Credit-Card Rewards Is Becoming a Part-Time Job: https://www.wsj.com/personal-finance/using-premium-credit-card-rewards-is-becoming-a-part-time-job-82c18455

Big Tech's Soaring Profits Have an Ugly Underside: Open AI's Losses: https://finance.yahoo.com/news/big-tech-soaring-profits-ugly-122500177.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAALWD8nHJpEX9nXtZWkO4v_XtrwIvO8rKBhPFqurEeLjfAZX_MpLRlZKzvh_KxoRHzyXhj5mAjEFyQwvNU6ge7XHmM957K3kQvN_C0H00uXQ_ylebgQOlOUQ7qTp1OpGZ0JM8viep6SYx0PLWZg6E3XQApdYSYOtfxiW0PZikonoF