Just back from California. On the flight out, I devoured Michael Lewis’s “Next: The Future Just Happened,” the follow-up to his wildly popular “The New New Thing.” Though not as epic as its predecessor, “Next” was terrific, a keen survey of social change in the post-Net age. Lewis convinced me that he is a truly gifted chronicler of eras, and while in San Francisco, I eagerly hunted down a copy of his first book, “Liar’s Poker,” a less polished yet thoroughly engaging recreation of the bond trading business during the heady Eighties.