Inside a mining company s AI transformation McKinsey· The mood was apprehensive as data scientists metallurgists and engineers from Freeport McMoRan filed into the control room of a copper ore concentrating mill in Bagdad Arizona on the morning of October 19 2018 They had come to learn what would happen when they cranked the big mill up to a work rate that had never been tried The possibility of causing problems at the mill weighed on