by Richard HeinbergA couple of days ago I happened to pick up an old book gathering dust on one of my office shelves - Palmer Putnam’s Energy in the Future, published in 1953. Here was a time capsule of energy concerns from nearly a lifetime ago - and it got me to thinking along the lines of Howard Baker’s famous question during the Watergate hearings: “What did [w]e know, and when did [w]e know it?