Some market watchers are concerned by the circular nature of deals with chip makers Nvidia and AMD Some market watchers are concerned by the circular nature of deals with chip makers Nvidia and AMD There are always points in financial booms when market commentators ask if exuberance has got out of hand. OpenAI’s multibillion-dollar deals with chip makers Nvidia and AMD are the latest reason for pause about the sustainability of vast investments in artificial intelligence. Here we answer some