In part one of a series on the rise and power of the tech oligarchs, Sidney Blumenthal and Sean Wilentz speak up with Gil Duran, author of “The Nerd Reich: Silicon Valley Fascism and the War on Democracy,” on the origins of techno-authoritarianism, its hallucinatory fascist theorists, the central role of Peter Thiel and his PayPal Mafia, and how they merge with Donald Trump and his MAGA movement.