The basic situation is that if OpenAI announces a big partnership with a public company, that company’s stock will go up. Today OpenAI announced a deal to buy tens of billions of dollars of chips from Advanced Micro Devices Inc., and AMD’s stock went up. As of noon today, AMD’s stock was at $213 per share, up about 29% from Friday’s close; it had added about $78 billion of market capitalization.How do those negotiations go? Like, schematically:...