Jason DeSena Trennert, the keynote presenter at Thursday’s Economic Forecast Breakfast, understands the significance of the event’s theme, “Turbulent Times Ahead?” But Trennert, chairman and CEO of Strategas Securities LLC, is an optimist. He keeps the faith with the economy, having been seasoned by launching his business at 2006, just in time to get up and running for the Great Recession. Trennert has seen stories suggesting another recession is overdue after years of an expanding economy. “I remain pretty optimistic about the economy and the (stock) market,” Trennert said in a phone interview.