Sam Altman, CEO of OpenAI (L), and Jensen Huang CEO of Nvidia.ReutersABILENE, Texas – Sam Altman had a deadline. OpenAI's CEO was headed to Texas to unveil his company's next big infrastructure push, and Nvidia CEO Jensen Huang wanted in on the action. Through a series of hurried negotiations, late-night calls and last-minute contract tweaks, the two giants of artificial intelligence struck a $100 billion partnership on Monday, hours before Altman boarded his flight to Abilene, a city of about 1...