Is Google allowed to spend billions of dollars to make its search product the default browser? That is the question at the center of U.S. et al. v. Google — the most important tech trial of the modern internet era — and Kevin and Casey disagree on the answer.Then, a conversation with the journalist who spent the last two years shadowing Elon Musk.Today’s guest:Walter Isaacson is a writer and author of the forthcoming biography “Elon Musk.”Additional reading:Google’s antitrust lawsuit against the U.S. government brings the first major tech trial since U.S. v. Microsoft which began in 1998.“Elon Musk,” by Walter Isaacson.