This week marked a historic turning point for artificial intelligence.The world’s best AI hardware maker – Nvidia (NVDA) – and the world’s best AI software developer – OpenAI – announced the single biggest deal in the history of artificial intelligence. In our view, it looks an awful lot like the Manhattan Project of AI… and it signals that the red-hot AI stock market rally still has plenty of runway left.Here’s what went down…Nvidia announced it will invest $100 billion into OpenAI to build and deploy at l ...