Amazon wants to dominate the three core layers of artificial intelligence: infrastructure, large language models, and software.Cathie Wood is the founder of Ark Investment Management, which operates several exchange-traded funds (ETFs) focused on innovative technology stocks. Wood thinks software companies will be the next big opportunity in the artificial intelligence (AI) industry, predicting they could generate $8 in revenue for every $1 they spend on chips from suppliers like Nvidia.Since making that ca ...