Microsoft (MSFT -1.32%) made headlines late last week when it announced it would spend $80 billion this year building data centers that would train artificial intelligence (AI) models and handle AI and cloud-based applications around the world. More than half of the investment will be in the U.S. To put the amount Microsoft is spending on AI infrastructure in perspective, that is more than the gross domestic product (GDP) of many countries, including Croatia and Lithuania (to name just two). Microsoft's Azu ...