In long dinners with Silicon Valley titans, [President Obama] has talked extensively about ways to better use personal technology to increase voter turnout and improve civic engagement. —"For Gadget Geek in the Oval Office, High Tech Has Its Limits," The New York Times, January 24, 2016SCENE: A table in the private upstairs dining room of the White House. Seated around it are BARACK OBAMA (POTUS), REID HOFFMAN (LinkedIn), ERIC SCHMIDT (Google), MARK ZUCKERBERG (Facebook), BILL GATES (Microsoft), MARK PINCUS (Zynga), TRAVIS KALANICK (Uber) and others not listed in the White House Visitors Log. Dinner has just finished, and the President is enjoying his post-prandial drink of choice, an extra-dry Grey Goose martini. Several of his guests are having the same.OBAMA:...