Elon Musk's AI startup xAI has purchased a third building, reportedly named 'MACROHARDRR,' to expand its data center infrastructure near Memphis, Tennessee. This expansion aims to boost its AI training compute power to nearly 2 gigawatts, supporting the development of its 'Colossus' supercomputer cluster. The move is part of xAI's strategy to compete with industry leaders, though it has drawn criticism from environmental activists due to the significant energy consumption of data centers.