Big tech's trillion-dollar ai bet

microsoft, meta, amazon and alphabet are collectively investing hundreds of billions of dollars into ai infrastructure, propelling nvidia to a central position in the global economy. this spending surge underscores a shift from software-focused growth to heavy investment in physical compute resources required for generative ai. the trend signals that corporate dominance now depends on securing chip supply and data center capacity. this trajectory suggests a sustained, high-stakes arms race where only companies with deep capital reserves can compete at the frontier.