Even if you’ve never eaten an Impossible Burger, you’ve probably heard of them. But you may not know the science and story behind those meatless products.

Pat Brown is a University of Chicago alum, the founder and CEO of Impossible Foods, and a scientist at Stanford University. He says the meat industry is the “greatest threat humanity has ever faced,” and that “cracking the code” of plant-based food products could be our only hope for the future.