Dustin FinkelsteinGetty Images for SXSW Whole Foods Market founder and CEO John Mackey is a big fan of capitalism. "I will say capitalism is the greatest invention that humanity's ever done," Mackey said, speaking at the Federalist Society's October 1 panel on "The Future of Our Food." Mackey described capitalism as a "win-win-win game" that has uplifted humanity and driven innovation. The panel — "It Can Be Done Live: The Future of Our Food" — featured conversations with Sonny Perdue, the Secretary of Agriculture; Josh Tetrick, the founder of plant-based food startup Eat JUST; and Anastasia Boden, a lawyer with the libertarian Pacific Legal Foundation.