Alphabet's valuation could soar thanks to the artificial intelligence (AI) initiatives at Google Search and Google Cloud. The U.S. is home to nine companies with market capitalizations of $1 trillion or more, but only three have surpassed the ultra-exclusive$3 trillion milestone: AI is reshaping Google Search Google Search is Alphabet's most important business, because it consistently represents more than half of the tech conglomerate's total revenue. A few years ago, investors were worried AI chatbots lik ...