Google became the king of internet search and created a free cornucopia of knowledge by striking a clever bargain with anyone who made a website: Let the company’s crawler index your pages and Google would send human readers back.That trade looks very different today thanks to Google’s strategy of using its search infrastructure to strengthen its artificial-intelligence products.Bloomberg OpinionSubscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles